{"id":32851,"date":"2026-05-11T07:47:14","date_gmt":"2026-05-11T07:47:14","guid":{"rendered":"https:\/\/benchmarkemail.wpengine.com\/jp\/?p=32851"},"modified":"2026-07-23T06:46:56","modified_gmt":"2026-07-23T06:46:56","slug":"html_vs_plain_text_emails_which_is_better","status":"publish","type":"post","link":"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/","title":{"rendered":"HTML\u30e1\u30fc\u30eb\u3068\u306f\uff1f\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u306e\u9055\u3044\u30fb\u4f5c\u308a\u65b9\u30fb\u4f7f\u3044\u5206\u3051\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u306f\u3001\u753b\u50cf\u3084\u8272\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u4f7f\u3063\u3066\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u3089\u308c\u308b\u30e1\u30fc\u30eb\u5f62\u5f0f\u306e\u3053\u3068\u3067\u3059\u3002\u30e1\u30eb\u30de\u30ac\u3084\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u30e1\u30fc\u30eb\u3067\u3088\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u30af\u30ea\u30c3\u30af\u7387\u3084\u958b\u5c01\u7387\u306e\u6539\u5584\u306b\u5f79\u7acb\u3064\u624b\u6cd5\u3068\u3057\u3066\u591a\u304f\u306e\u4f01\u696d\u304c\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 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ez-toc-heading-24\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#HTML%E3%83%A1%E3%83%BC%E3%83%AB%E4%BD%9C%E6%88%90%E3%83%BB%E9%85%8D%E4%BF%A1%E3%81%AB%E3%81%8A%E3%81%99%E3%81%99%E3%82%81%E3%81%AE%E3%83%A1%E3%83%BC%E3%83%AB%E9%85%8D%E4%BF%A1%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B96%E9%81%B8\" >HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u30fb\u914d\u4fe1\u306b\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b96\u9078<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Benchmark_Email\" >Benchmark Email<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Blastmail\" >Blastmail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#%E9%85%8D%E9%85%8D%E3%83%A1%E3%83%BC%E3%83%AB\" >\u914d\u914d\u30e1\u30fc\u30eb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#WiLL_Mail%EF%BC%88%E3%82%A6%E3%82%A3%E3%83%AB%E3%83%A1%E3%83%BC%E3%83%AB%EF%BC%89\" >WiLL Mail\uff08\u30a6\u30a3\u30eb\u30e1\u30fc\u30eb\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Cuenote_FC\" >Cuenote FC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Mailchimp\" >Mailchimp<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AB%E9%96%A2%E3%81%99%E3%82%8B%E3%82%88%E3%81%8F%E3%81%82%E3%82%8B%E8%B3%AA%E5%95%8F%EF%BC%88FAQ%EF%BC%89\" >HTML\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%81%AF%E4%BD%95%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Q. HTML\u30e1\u30fc\u30eb\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E5%8D%B1%E9%99%BA%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Q. HTML\u30e1\u30fc\u30eb\u306f\u5371\u967a\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E9%96%8B%E5%B0%81%E7%8E%87%E3%81%8C%E3%82%8F%E3%81%8B%E3%82%8A%E3%81%BE%E3%81%99%E3%81%8B%EF%BC%9F\" >Q. HTML\u30e1\u30fc\u30eb\u306f\u958b\u5c01\u7387\u304c\u308f\u304b\u308a\u307e\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E8%BF%B7%E6%83%91%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AB%E3%81%AA%E3%82%8A%E3%82%84%E3%81%99%E3%81%84%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Q. HTML\u30e1\u30fc\u30eb\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u304b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E3%81%A9%E3%81%A1%E3%82%89%E3%82%92%E4%BD%BF%E3%81%86%E3%81%B9%E3%81%8D%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\" >Q. HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#HTML%E3%83%A1%E3%83%BC%E3%83%AB%E9%85%8D%E4%BF%A1%E3%81%AB%E3%81%AF%E3%80%8CBenchmark_Email%E3%80%8D%E3%81%8C%E3%81%8A%E3%81%99%E3%81%99%E3%82%81\" >HTML\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u306f\u300cBenchmark Email\u300d\u304c\u304a\u3059\u3059\u3081<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#%E3%81%8A%E3%81%97%E3%82%83%E3%82%8C%E3%81%AAHTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%8C%E7%B0%A1%E5%8D%98%E3%81%AB%E4%BD%9C%E6%88%90%E3%81%A7%E3%81%8D%E3%82%8B\" 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href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/html_vs_plain_text_emails_which_is_better\/#%E3%81%BE%E3%81%A8%E3%82%81%EF%BC%9A%E7%9B%AE%E7%9A%84%E3%81%AB%E5%90%88%E3%82%8F%E3%81%9B%E3%81%A6HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%82%92%E4%BD%BF%E3%81%84%E5%88%86%E3%81%91%E3%82%88%E3%81%86\" >\u307e\u3068\u3081\uff1a\u76ee\u7684\u306b\u5408\u308f\u305b\u3066HTML\u30e1\u30fc\u30eb\u3092\u4f7f\u3044\u5206\u3051\u3088\u3046<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%81%AF%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u306f\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u306f\u3001\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u60c5\u5831\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u4f1d\u3048\u3089\u308c\u308b\u30e1\u30fc\u30eb\u5f62\u5f0f\u306e\u3053\u3068\u3067\u3059\u3002Web\u30da\u30fc\u30b8\u3068\u540c\u3058HTML\u3067\u4f5c\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6587\u5b57\u3060\u3051\u306e\u30e1\u30fc\u30eb\u3088\u308a\u3082\u76f4\u611f\u7684\u306b\u5185\u5bb9\u3092\u7406\u89e3\u3057\u3066\u3082\u3089\u3044\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305d\u306e\u305f\u3081\u3001\u5546\u54c1\u7d39\u4ecb\u3084\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306e\u304a\u77e5\u3089\u305b\u306a\u3069\u3001\u898b\u305f\u76ee\u3067\u8a34\u6c42\u3057\u305f\u3044\u5834\u9762\u3067\u5e83\u304f\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u307e\u305f\u3001\u672c\u6765\u306fHTML\u30b3\u30fc\u30c9\u3067\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6700\u8fd1\u3067\u306f\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3067\u7c21\u5358\u306b\u4f5c\u308c\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u3092\u4f7f\u3046\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E9%81%95%E3%81%84%E3%82%92%E6%AF%94%E8%BC%83\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u9055\u3044\u3092\u6bd4\u8f03<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u9055\u3044\u306f\u3001\u300c\u898b\u305f\u76ee\u3067\u4f1d\u3048\u308b\u304b\u3001\u6587\u7ae0\u3067\u4f1d\u3048\u308b\u304b\u300d\u3068\u3044\u3046\u70b9\u306b\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50520\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1.png\" alt=\"HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1-300x169.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1-1024x576.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1-768x432.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068HTML\u30e1\u30fc\u30eb-1-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u3089\u308c\u308b\u306e\u306b\u5bfe\u3057\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u6587\u5b57\u3060\u3051\u3067\u30b7\u30f3\u30d7\u30eb\u306b\u5185\u5bb9\u3092\u4f1d\u3048\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u4ee5\u4e0b\u306e\u8868\u3067\u9055\u3044\u3092\u6574\u7406\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<table style=\"width: 100%;border-collapse: collapse;font-size: 15px;line-height: 1.6\">\n<thead>\n<tr>\n<th style=\"padding: 12px 16px;text-align: left;border: 1px solid #A8C0BE;background-color: #e8eded;color: #3a5050;font-weight: 500\">\u9805\u76ee<\/th>\n<th style=\"padding: 12px 16px;text-align: left;border: 1px solid #7ECBC5;background-color: #d6f0ee;color: #1a5a55;font-weight: 500\">HTML\u30e1\u30fc\u30eb<\/th>\n<th style=\"padding: 12px 16px;text-align: left;border: 1px solid #F0A0A0;background-color: #fddede;color: #7a1a1a;font-weight: 500\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #ffffff;font-weight: 500\">\u8868\u73fe\u65b9\u6cd5<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #f0fafa\">\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3067\u4f1d\u3048\u308b<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #fff5f5\">\u6587\u5b57\u306e\u307f\u3067\u4f1d\u3048\u308b<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #ffffff;font-weight: 500\">\u8996\u8a8d\u6027<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #f0fafa\">\u898b\u3084\u3059\u304f\u76f4\u611f\u7684<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #fff5f5\">\u30b7\u30f3\u30d7\u30eb\u3067\u8aad\u307f\u3084\u3059\u3044<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #ffffff;font-weight: 500\">\u8a34\u6c42\u529b<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #f0fafa\">\u9ad8\u3044\uff08\u30af\u30ea\u30c3\u30af\u3092\u4fc3\u3057\u3084\u3059\u3044\uff09<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #fff5f5\">\u4f4e\u3081<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #ffffff;font-weight: 500\">\u5bb9\u91cf<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #f0fafa\">\u5927\u304d\u3081<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #fff5f5\">\u5c0f\u3055\u3081<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #ffffff;font-weight: 500\">\u52b9\u679c\u6e2c\u5b9a<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #f0fafa\">\u958b\u5c01\u30fb\u30af\u30ea\u30c3\u30af\u306e\u8a08\u6e2c\u304c\u53ef\u80fd<\/td>\n<td style=\"padding: 10px 16px;border: 1px solid #cccccc;background-color: #fff5f5\">\u57fa\u672c\u7684\u306b\u4e0d\u53ef<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u5546\u54c1\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u60c5\u5831\u3092\u8996\u899a\u7684\u306b\u4f1d\u3048\u3089\u308c\u308b\u305f\u3081\u300c\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u5411\u3051\u300d\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u300c\u9023\u7d61\u3084\u55b6\u696d\u5411\u3051\u300d\u3068\u8003\u3048\u308b\u3068\u30a4\u30e1\u30fc\u30b8\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88%E3%83%BB%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">\u307e\u305a\u306f\u3001HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50522\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png\" alt=\"HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c6\u3099\u30e1\u30ea\u30c3\u30c8\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-300x169.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-1024x576.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-768x432.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span>HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4>\u8996\u899a\u7684\u306b\u8a34\u6c42\u3067\u304d\u308b<\/h4>\n<p>\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u5546\u54c1\u306e\u9b45\u529b\u3084\u30d6\u30e9\u30f3\u30c9\u30a4\u30e1\u30fc\u30b8\u3092\u76f4\u611f\u7684\u306b\u4f1d\u3048\u3089\u308c\u307e\u3059\u3002\u6587\u7ae0\u3060\u3051\u3067\u306f\u4f1d\u308f\u308a\u306b\u304f\u3044\u5185\u5bb9\u3067\u3082\u3001\u4e00\u76ee\u3067\u7406\u89e3\u3057\u3066\u3082\u3089\u3044\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u5f53\u793e\u304c2026\u5e74\u306b\u884c\u3063\u305f\u300c<a href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/newslettersurvey2026\/\" target=\"_blank\" rel=\"noopener\">\u30e1\u30fc\u30eb\u30de\u30ac\u30b8\u30f3\u8cfc\u8aad\u72b6\u6cc1\u8abf\u67fb<\/a>\u300d\u3067\u306f\u3001\u53d7\u4fe1\u8005\u304c\u30e1\u30eb\u30de\u30ac1\u901a\u3042\u305f\u308a\u306b\u304b\u3051\u308b\u6642\u9593\u306f\u300c30\u79d2\u301c60\u79d2\u300d\u304c\u4e2d\u592e\u5024\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u77ed\u3044\u6642\u9593\u3067\u3082\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u306e\u9b45\u529b\u3092\u8996\u899a\u7684\u306b\u4f1d\u3048\u3089\u308c\u308b\u70b9\u306f\u3001HTML\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<h4>\u30af\u30ea\u30c3\u30af\u7387\u30fb\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u5411\u4e0a\u304c\u671f\u5f85\u3067\u304d\u308b<\/h4>\n<p>\u30dc\u30bf\u30f3\u3084\u753b\u50cf\u3092\u8a2d\u7f6e\u3067\u304d\u308b\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u884c\u52d5\u3092\u4fc3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3084\u5546\u54c1\u7d39\u4ecb\u3067\u306f\u3001\u30d0\u30ca\u30fc\u753b\u50cf\u3084\u5546\u54c1\u753b\u50cf\u306b\u52a0\u3048\u3001\u30dc\u30bf\u30f3\u306a\u3069\u306eCTA\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u3067\u30af\u30ea\u30c3\u30af\u7387\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u52b9\u679c\u6e2c\u5b9a\u304c\u3067\u304d\u308b<\/h4>\n<p>\u52b9\u679c\u6e2c\u5b9a\u6a5f\u80fd\u306e\u3064\u3044\u305f\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u306a\u3069\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u3069\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u53cd\u5fdc\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u628a\u63e1\u3067\u304d\u308b\u70b9\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306b\u306f\u306a\u3044\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<h4>\u30d6\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u306b\u5f37\u3044<\/h4>\n<p>\u30c7\u30b6\u30a4\u30f3\u3092\u7d71\u4e00\u3059\u308b\u3053\u3068\u3067\u3001\u4f01\u696d\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u5370\u8c61\u3092\u5f37\u304f\u6b8b\u305b\u307e\u3059\u3002\u7d99\u7d9a\u7684\u306b\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30e9\u30f3\u30c9\u30a4\u30e1\u30fc\u30b8\u306e\u5b9a\u7740\u306b\u3082\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span><span id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\" class=\"ez-toc-section\"><\/span>HTML\u30e1\u30fc\u30eb\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4>\u8868\u793a\u5d29\u308c\u306e\u30ea\u30b9\u30af\u304c\u3042\u308b<\/h4>\n<p>\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306b\u3088\u3063\u3066\u8868\u793a\u4ed5\u69d8\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\nGmail\u3084Outlook\u306a\u3069\u3001\u4e3b\u8981\u306a\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3067\u8868\u793a\u5d29\u308c\u304c\u8d77\u304d\u306a\u3044\u304b\u306f\u4e8b\u524d\u306b\u78ba\u8a8d\u3057\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n<h4>\u5bb9\u91cf\u304c\u5927\u304d\u304f\u306a\u308b<\/h4>\n<p>\u753b\u50cf\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306b\u6bd4\u3079\u3066\u30c7\u30fc\u30bf\u5bb9\u91cf\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<br 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\/>\n\u30c6\u30ad\u30b9\u30c8\u3068\u753b\u50cf\u306e\u30d0\u30e9\u30f3\u30b9\u306f7:3\u307e\u305f\u306f6:4\u7a0b\u5ea6\u3092\u76ee\u5b89\u306b\u3001\u898b\u3084\u3059\u3044\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u3082\u5230\u9054\u7387\u3092\u7dad\u6301\u3059\u308b\u4e0a\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h4>\u5236\u4f5c\u306b\u624b\u9593\u304c\u304b\u304b\u308b<\/h4>\n<p>\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u30a8\u30c7\u30a3\u30bf\u3067\u4f5c\u6210\u53ef\u80fd\u306a\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\u3001HTML\u3084\u30c7\u30b6\u30a4\u30f3\u306e\u77e5\u8b58\u304c\u5fc5\u8981\u306b\u306a\u308b\u305f\u3081\u3001\u6163\u308c\u3066\u3044\u306a\u3044\u3068\u4f5c\u6210\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u7279\u306b\u8868\u793a\u5d29\u308c\u306e\u8abf\u6574\u306f\u624b\u9593\u306b\u306a\u308a\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001Benchmark Email\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u6d3b\u7528\u3059\u308c\u3070\u3001\u521d\u5fc3\u8005\u3067\u3082\u7c21\u5358\u306b\u898b\u6804\u3048\u306e\u3044\u3044\u30e1\u30eb\u30de\u30ac\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center\"><span style=\"font-weight: 400\">\uff08\u30e1\u30eb\u30de\u30ac\u306e\u4f8b\uff09<\/span><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50524\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1.png\" alt=\"\u30e1\u30eb\u30de\u30ab\u3099\u4f8b\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1-300x169.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1-1024x576.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1-768x432.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30e1\u30eb\u30de\u30ac\u4f8b-1-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<h2 style=\"text-align: left\"><span class=\"ez-toc-section\" id=\"%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88%E3%83%BB%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30fb\u30c7\u30e1\u30ea\u30c3\u30c8<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: left\"><span style=\"font-weight: 400\">\u7d9a\u3044\u3066\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002<\/span><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50533\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png\" alt=\"\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c6\u3099\u30e1\u30ea\u30c3\u30c8\" width=\"1920\" height=\"900\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-300x141.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-1024x480.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-768x360.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8\u30c7\u30e1\u30ea\u30c3\u30c8-1536x720.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<h3 style=\"text-align: left\"><span class=\"ez-toc-section\" id=\"%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span style=\"font-weight: 400\">\u5230\u9054\u7387\u304c\u9ad8\u3044<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u6587\u5b57\u306e\u307f\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3084\u74b0\u5883\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u304f\u3001\u5b89\u5b9a\u3057\u3066\u53d7\u4fe1\u3055\u308c\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<h4><span style=\"font-weight: 400\">\u8efd\u304f\u3066\u8aad\u307f\u8fbc\u307f\u304c\u901f\u3044<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u30c7\u30fc\u30bf\u5bb9\u91cf\u304c\u5c0f\u3055\u3044\u305f\u3081\u3001\u901a\u4fe1\u74b0\u5883\u306b\u5de6\u53f3\u3055\u308c\u306b\u304f\u304f\u3001\u30b9\u30e0\u30fc\u30ba\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30e2\u30d0\u30a4\u30eb\u74b0\u5883\u3067\u3082\u8868\u793a\u5d29\u308c\u306a\u3069\u306e\u5fc3\u914d\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<h4><span style=\"font-weight: 400\">\u30b7\u30f3\u30d7\u30eb\u3067\u4fe1\u983c\u611f\u304c\u3042\u308b<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u88c5\u98fe\u304c\u5c11\u306a\u304f\u6587\u7ae0\u4e2d\u5fc3\u306e\u305f\u3081\u3001\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u3084\u55b6\u696d\u30e1\u30fc\u30eb\u3068\u3057\u3066\u81ea\u7136\u306b\u53d7\u3051\u53d6\u3089\u308c\u3084\u3059\u3044\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u500b\u5225\u306e\u3084\u308a\u53d6\u308a\u3067\u306f\u3001\u76f8\u624b\u306b\u5b89\u5fc3\u611f\u3092\u4e0e\u3048\u3084\u3059\u3044\u5f62\u5f0f\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%87%E3%83%A1%E3%83%AA%E3%83%83%E3%83%88\"><\/span><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span style=\"font-weight: 400\">\u8996\u899a\u7684\u306a\u8a34\u6c42\u304c\u3067\u304d\u306a\u3044<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3048\u306a\u3044\u305f\u3081\u3001\u5546\u54c1\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u9b45\u529b\u3092\u76f4\u611f\u7684\u306b\u4f1d\u3048\u308b\u306e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u5185\u5bb9\u306b\u3088\u3063\u3066\u306f\u5370\u8c61\u306b\u6b8b\u308a\u306b\u304f\u3044\u70b9\u304c\u30c7\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/span><\/p>\n<h4><span style=\"font-weight: 400\">\u30af\u30ea\u30c3\u30af\u3092\u4fc3\u3057\u306b\u304f\u3044<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u30dc\u30bf\u30f3\u3084\u30d0\u30ca\u30fc\u304c\u4f7f\u3048\u306a\u3044\u305f\u3081\u3001\u30ea\u30f3\u30af\u3078\u306e\u8a98\u5c0e\u304c\u5f31\u304f\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3067\u30e6\u30fc\u30b6\u30fc\u306b\u30af\u30ea\u30c3\u30af\u306a\u3069\u306e\u884c\u52d5\u3092\u4fc3\u3059\u306b\u306f\u3001\u6587\u7ae0\u306e\u5de5\u592b\u3084\u4fe1\u983c\u95a2\u4fc2\u304c\u975e\u5e38\u306b\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<h4><span style=\"font-weight: 400\">\u52b9\u679c\u6e2c\u5b9a\u304c\u57fa\u672c\u7684\u306b\u306f\u3067\u304d\u306a\u3044<\/span><\/h4>\n<p><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306fHTML\u30e1\u30fc\u30eb\u306e\u3088\u3046\u306b\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u304f\u3001\u6539\u5584\u306b\u6d3b\u304b\u305b\u308b\u30c7\u30fc\u30bf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305f\u3060\u3057\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3063\u3066\u300c\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u98a8\u300d\u306eHTML\u30e1\u30fc\u30eb\u3092\u9001\u308c\u3070\u3001\u52b9\u679c\u6e2c\u5b9a\u3082\u53ef\u80fd\u3067\u3059\u3002\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3067\u52b9\u679c\u6e2c\u5b9a\u304c\u3057\u305f\u3044\u5834\u5408\u306f\u3001HTML\u30e1\u30fc\u30eb\u7528\u306e\u30a8\u30c7\u30a3\u30bf\u3092\u4f7f\u3044\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u307f\u306e\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/span><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/app.benchmarkemail.io\/register?language=ja&amp;region=ap-northeast-1\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-36721 size-full\" src=\"https:\/\/www.benchmarkemail.com\/images\/blog\/blog_trial_banner_general.png\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0,\u30e1\u30eb\u30de\u30ac\u30b5\u30fc\u30d3\u30b9\u306e\u7121\u6599\u767b\u9332\" width=\"900\" height=\"340\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%80%81%E3%81%A9%E3%81%A1%E3%82%89%E3%82%92%E4%BD%BF%E3%81%86%E3%81%B9%E3%81%8D%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3001\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">\u7d50\u8ad6\u3068\u3057\u3066\u3001HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u3069\u3061\u3089\u304c\u826f\u3044\u304b\u306f\u3001\u76ee\u7684\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\"><strong>\u30e1\u30eb\u30de\u30ac\u3067\u5546\u54c1\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u9b45\u529b\u3092\u4f1d\u3048\u305f\u3044\u5834\u5408<\/strong>\u306f\u3001\u8996\u899a\u7684\u306b\u8a34\u6c42\u3067\u304d\u308bHTML\u30e1\u30fc\u30eb\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u4e00\u65b9\u3067\u3001<strong>\u78ba\u5b9f\u306b\u8aad\u3093\u3067\u3082\u3089\u3044\u305f\u3044\u9023\u7d61\u3084\u55b6\u696d\u30e1\u30fc\u30eb<\/strong>\u3067\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u65b9\u304c\u52b9\u679c\u7684\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u6700\u8fd1\u3067\u306fHTML\u30e1\u30fc\u30eb\u304c\u4e3b\u6d41\u306b\u306a\u308a\u3064\u3064\u3042\u308a\u307e\u3059\u304c\u3001\u5230\u9054\u7387\u3084\u53d7\u3051\u53d6\u3089\u308c\u65b9\u306e\u89b3\u70b9\u304b\u3089\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3082\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u304c\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u306e\u52b9\u679c\u3092\u9ad8\u3081\u308b\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E4%BD%BF%E3%81%84%E5%88%86%E3%81%91%E6%96%B9\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306e\u4f7f\u3044\u5206\u3051\u65b9<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">\u305d\u308c\u3067\u306f\u3001HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u4f7f\u3044\u5206\u3051\u308b\u3068\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u305d\u308c\u305e\u308c\u304c\u9069\u3057\u3066\u3044\u308b\u5834\u9762\u306b\u3064\u3044\u3066\u6574\u7406\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p style=\"text-align: left\"><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50532\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3.png\" alt=\"HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304b\u3099\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3-300x169.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3-1024x576.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3-768x432.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%8C%E9%81%A9%E3%81%97%E3%81%A6%E3%81%84%E3%82%8B%E3%82%B7%E3%83%BC%E3%83%B3\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u3001\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u305f\u3044\u5834\u9762\u3084\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u884c\u52d5\u3092\u4fc3\u3057\u305f\u3044\u5834\u9762\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u3084\u753b\u50cf\u3092\u4e0a\u624b\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5185\u5bb9\u3092\u76f4\u611f\u7684\u306b\u7406\u89e3\u3057\u3066\u3082\u3089\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u307e\u305f\u3001\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u306a\u3069\u306e\u52b9\u679c\u6e2c\u5b9a\u304c\u53ef\u80fd\u306a\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30fc\u30eb\u3067\u306f\u3001HTML\u30e1\u30fc\u30eb\u3067\u306e\u914d\u4fe1\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><\/p>\n<ul>\n<li><b>\u5b9a\u671f\u7684\u306a\u30e1\u30eb\u30de\u30ac\u914d\u4fe1<\/b><\/li>\n<li><b>\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3084\u30bb\u30fc\u30eb\u306a\u3069\u306e\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u544a\u77e5<\/b><\/li>\n<li><b>EC\u30b5\u30a4\u30c8\u306e\u5546\u54c1\u7d39\u4ecb\u30fb\u8ca9\u4fc3<\/b><\/li>\n<li><b>\u30a4\u30d9\u30f3\u30c8\u3084\u30bb\u30df\u30ca\u30fc\u306e\u6848\u5185<\/b><\/li>\n<li><b>\u30ea\u30fc\u30c9\u7372\u5f97\u5f8c\u306e\u30b5\u30fc\u30d3\u30b9\u7d39\u4ecb\u30e1\u30fc\u30eb<\/b><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u4f8b.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-50527 aligncenter\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u4f8b.jpg\" alt=\"HTML\u30e1\u30fc\u30eb\u4f8b\" width=\"409\" height=\"452\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u4f8b.jpg 752w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/HTML\u30e1\u30fc\u30eb\u4f8b-272x300.jpg 272w\" sizes=\"auto, (max-width: 409px) 100vw, 409px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%8C%E9%81%A9%E3%81%97%E3%81%A6%E3%81%84%E3%82%8B%E3%82%B7%E3%83%BC%E3%83%B3\"><\/span><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u30b7\u30fc\u30f3<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3001\u78ba\u5b9f\u306b\u5185\u5bb9\u3092\u5c4a\u3051\u305f\u3044\u5834\u9762\u3084\u3001\u500b\u5225\u306e\u3084\u308a\u53d6\u308a\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30b7\u30f3\u30d7\u30eb\u306a\u69cb\u6210\u306e\u305f\u3081\u3001\u76f8\u624b\u306b\u9055\u548c\u611f\u3092\u4e0e\u3048\u306b\u304f\u304f\u3001\u4fe1\u983c\u611f\u3092\u6301\u3063\u3066\u8aad\u307e\u308c\u3084\u3059\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30bf\u30a4\u30d7\u306e\u30e1\u30fc\u30eb\u3067\u306f\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3084\u3001\u300c\u30c6\u30ad\u30b9\u30c8\u98a8\u300d\u306eHTML\u30e1\u30fc\u30eb\u3067\u306e\u914d\u4fe1\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/span><\/p>\n<ul>\n<li><b>\u500b\u4eba\u306e\u55b6\u696d\u30e1\u30fc\u30eb<\/b><\/li>\n<li><b>\u304a\u5ba2\u69d8\u3068\u306e\u500b\u5225\u306e\u3084\u308a\u53d6\u308a<\/b><\/li>\n<li><b>\u91cd\u8981\u306a\u304a\u77e5\u3089\u305b<\/b><\/li>\n<li><b>\u30b7\u30b9\u30c6\u30e0\u901a\u77e5\u00a0<\/b><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-50526 aligncenter\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b.jpg\" alt=\"\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b\" width=\"437\" height=\"450\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b.jpg 862w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b-291x300.jpg 291w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u4f8b-768x791.jpg 768w\" sizes=\"auto, (max-width: 437px) 100vw, 437px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E4%BD%9C%E3%82%8A%E6%96%B9\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u308a\u65b9<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u308a\u65b9\u306f\u3001\u300cHTML\u3092\u76f4\u63a5\u8a18\u8ff0\u3059\u308b\u65b9\u6cd5\u300d\u3068\u300c\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u300d\u306e2\u3064\u306b\u5206\u3051\u3089\u308c\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u7279\u5fb4\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u76ee\u7684\u3084\u30b9\u30ad\u30eb\u306b\u5fdc\u3058\u3066\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"HTML%E3%82%92%E7%9B%B4%E6%8E%A5%E8%A8%98%E8%BF%B0%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95\"><\/span><span style=\"font-weight: 400\">HTML\u3092\u76f4\u63a5\u8a18\u8ff0\u3059\u308b\u65b9\u6cd5<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30b3\u30fc\u30c9\u3092\u81ea\u5206\u3067\u66f8\u3044\u3066\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u7d30\u304b\u3044\u30c7\u30b6\u30a4\u30f3\u307e\u3067\u81ea\u7531\u306b\u8abf\u6574\u3067\u304d\u308b\u305f\u3081\u3001\u30aa\u30ea\u30b8\u30ca\u30eb\u6027\u306e\u9ad8\u3044\u30e1\u30fc\u30eb\u3092\u4f5c\u308a\u305f\u3044\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u3053\u308c\u307e\u3067\u306fHTML\u3084CSS\u306e\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3057\u305f\u304c\u3001Claude\u306a\u3069\u306e\u751f\u6210AI\u30c4\u30fc\u30eb\u306e\u767b\u5834\u306b\u3088\u3063\u3066\u3001\u8ab0\u3067\u3082\u7c21\u5358\u306b\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305f\u3060\u3057\u3001\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u3054\u3068\u306e\u8868\u793a\u9055\u3044\u306b\u3082\u5bfe\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u306b\u306f\u3084\u3084\u30cf\u30fc\u30c9\u30eb\u304c\u9ad8\u3044\u65b9\u6cd5\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%A1%E3%83%BC%E3%83%AB%E9%85%8D%E4%BF%A1%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9%E3%82%92%E4%BD%BF%E3%81%86%E6%96%B9%E6%B3%95\"><\/span><span style=\"font-weight: 400\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3048\u3070\u3001\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3067\u76f4\u611f\u7684\u306bHTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u753b\u50cf\u3084\u30c6\u30ad\u30b9\u30c8\u3092\u914d\u7f6e\u3059\u308b\u3060\u3051\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u6574\u3046\u305f\u3081\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/NXG\u30e1\u30fc\u30eb\u4f5c\u6210gif.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-48796\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/NXG\u30e1\u30fc\u30eb\u4f5c\u6210gif.gif\" alt=\"\u30e1\u30eb\u30de\u30ac\u4f5c\u6210gif\" width=\"1920\" height=\"1080\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">\u307e\u305f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u914d\u4fe1\u304b\u3089\u52b9\u679c\u6e2c\u5b9a\u307e\u3067\u4e00\u62ec\u3067\u884c\u3048\u308b\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u3067\u3082\u30b9\u30e0\u30fc\u30ba\u306a\u904b\u7528\u304c\u53ef\u80fd\u3067\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306e\u8868\u793a\u5d29\u308c\u3092\u9632\u3050\u6a5f\u80fd\u3082\u5099\u308f\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u521d\u3081\u3066HTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u306f\u3001\u307e\u305a\u306f\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u4f5c\u308a\u65b9\u306b\u6163\u308c\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3082\u591a\u3044\u305f\u3081\u3001\u30c7\u30b6\u30a4\u30f3\u306e\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u7c21\u5358\u306b\u59cb\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u521d\u5fc3\u8005\u3067\u3082\u7c21\u5358\u306bHTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\uff1a<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><a href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/6-steps-to-generalize-good-email-designs\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u30e1\u30eb\u30de\u30ac\u30c7\u30b6\u30a4\u30f3\u521d\u5fc3\u8005\u3067\u308290\u70b9\u30ec\u30d9\u30eb\u306eHTML\u30e1\u30fc\u30eb\u3092\u4f5c\u308c\u308b6\u3064\u306e\u601d\u8003<\/span><\/a><\/p>\n<p><a href=\"https:\/\/app.benchmarkemail.io\/register?language=ja&amp;region=ap-northeast-1\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-36721 size-full\" src=\"https:\/\/www.benchmarkemail.com\/images\/blog\/blog_trial_banner_general.png\" alt=\"\u30e1\u30fc\u30eb\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0,\u30e1\u30eb\u30de\u30ac\u30b5\u30fc\u30d3\u30b9\u306e\u7121\u6599\u767b\u9332\" width=\"900\" height=\"340\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AE%E3%83%86%E3%83%B3%E3%83%97%E3%83%AC%E3%83%BC%E3%83%88%E6%B4%BB%E7%94%A8%E6%96%B9%E6%B3%95\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u6d3b\u7528\u65b9\u6cd5<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u52b9\u7387\u3088\u304f\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u591a\u304f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u7528\u9014\u306b\u5408\u308f\u305b\u305f\u3055\u307e\u3056\u307e\u306a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u3067\u3082\u5185\u5bb9\u3092\u5dee\u3057\u66ff\u3048\u308b\u3060\u3051\u3067\u3001\u898b\u3084\u3059\u3044\u30e1\u30fc\u30eb\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><b>\u3010\u30e1\u30fc\u30eb\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u4f8b\u3011<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>\u30e1\u30eb\u30de\u30ac\uff08\u30cb\u30e5\u30fc\u30b9\u30ec\u30bf\u30fc\uff09<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u5b9a\u671f\u7684\u306a\u60c5\u5831\u767a\u4fe1\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u8a18\u4e8b\u3084\u304a\u77e5\u3089\u305b\u3092\u6574\u7406\u3057\u3066\u4f1d\u3048\u3084\u3059\u3044\u3067\u3059\u3002\u696d\u754c\u5225\u306b\u7279\u5316\u3057\u305f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400\"><b>\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u30e1\u30fc\u30eb<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30bb\u30fc\u30eb\u3084\u7279\u5178\u306e\u8a34\u6c42\u306b\u7279\u5316\u3057\u3066\u304a\u308a\u3001\u8996\u899a\u7684\u306b\u30a4\u30f3\u30d1\u30af\u30c8\u306e\u3042\u308b\u30c7\u30b6\u30a4\u30f3\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400\"><b>\u5546\u54c1\u7d39\u4ecb\u30e1\u30fc\u30eb<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u5546\u54c1\u753b\u50cf\u3084\u8aac\u660e\u3001\u8cfc\u5165\u30dc\u30bf\u30f3\u3092\u914d\u7f6e\u3057\u3001\u8cfc\u5165\u306b\u3064\u306a\u3052\u3084\u3059\u3044\u69cb\u6210\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400\"><b>\u30a4\u30d9\u30f3\u30c8\u30fb\u30bb\u30df\u30ca\u30fc\u6848\u5185<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u65e5\u7a0b\u3084\u6982\u8981\u3001\u7533\u8fbc\u307f\u5c0e\u7dda\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u307e\u3068\u3081\u305f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u3001\u30bb\u30df\u30ca\u30fc\u96c6\u5ba2\u306a\u3069\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center\">\uff08Benchmark Email\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4f8b\uff09<a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-50530 aligncenter\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7.jpg\" alt=\"\u30c6\u30f3\u30d5\u309a\u30ec\u30fc\u30c8\u4e00\u89a7\" width=\"729\" height=\"444\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7.jpg 2536w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7-300x183.jpg 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7-1024x623.jpg 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7-768x468.jpg 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7-1536x935.jpg 1536w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7-2048x1247.jpg 2048w\" sizes=\"auto, (max-width: 729px) 100vw, 729px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E4%BD%9C%E6%88%90%E3%81%AE%E3%83%9D%E3%82%A4%E3%83%B3%E3%83%88%E3%83%BB%E6%B3%A8%E6%84%8F%E7%82%B9\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u306e\u30dd\u30a4\u30f3\u30c8\u30fb\u6ce8\u610f\u70b9<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u898b\u305f\u76ee\u3092\u81ea\u7531\u306b\u4f5c\u308c\u308b\u4e00\u65b9\u3067\u3001\u3044\u304f\u3064\u304b\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u3084\u6ce8\u610f\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u8aad\u307f\u3084\u3059\u3055\u3084\u5230\u9054\u7387\u306b\u5f71\u97ff\u3059\u308b\u90e8\u5206\u3067\u3059\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%AC%E3%82%B9%E3%83%9D%E3%83%B3%E3%82%B7%E3%83%96%E5%AF%BE%E5%BF%9C%E3%82%92%E8%A1%8C%E3%81%86\"><\/span><span style=\"font-weight: 400\">\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3092\u884c\u3046<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">PC\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u3001\u30e1\u30fc\u30eb\u53d7\u4fe1\u8005\u306e\u74b0\u5883\u306f\u3055\u307e\u3056\u307e\u3067\u3059\u3002\u6587\u5b57\u30b5\u30a4\u30ba\u3084\u753b\u50cf\u306e\u5927\u304d\u3055\u3001\u30dc\u30bf\u30f3\u306e\u914d\u7f6e\u306a\u3069\u3092\u8abf\u6574\u3057\u3001\u3069\u306e\u7aef\u672b\u3067\u3082\u8aad\u307f\u3084\u3059\u3044\u8a2d\u8a08\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u3054\u5229\u7528\u306e\u5834\u5408\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u304c\u5c0e\u5165\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u3067\u306e\u4e8b\u524d\u78ba\u8a8d\u306f\u884c\u3063\u305f\u65b9\u304c\u3044\u3044\u3067\u3059\u304c\u3001\u53d7\u4fe1\u8005\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u3067\u6700\u9069\u5316\u3055\u308c\u308b\u305f\u3081\u5b89\u5fc3\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%9E%E3%83%AB%E3%83%81%E3%83%91%E3%83%BC%E3%83%88%E9%85%8D%E4%BF%A1%E3%82%92%E6%B4%BB%E7%94%A8%E3%81%99%E3%82%8B\"><\/span><span style=\"font-weight: 400\">\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1\u3092\u6d3b\u7528\u3059\u308b<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1\u3068\u306f\u3001HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3092\u540c\u6642\u306b\u9001\u308b\u3053\u3068\u3067\u3001\u53d7\u4fe1\u74b0\u5883\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5f62\u5f0f\u304c\u8868\u793a\u3055\u308c\u308b\u6a5f\u80fd\u306e\u3053\u3068\u3067\u3059\u3002\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u8868\u793a\u30c8\u30e9\u30d6\u30eb\u3092\u9632\u304e\u306a\u304c\u3089\u3001\u3088\u308a\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u60c5\u5831\u3092\u5c4a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3053\u306e\u6a5f\u80fd\u304c\u3064\u3044\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u81ea\u52d5\u3067\u53d7\u4fe1\u8005\u306e\u74b0\u5883\u306b\u5fdc\u3058\u305f\u5f62\u5f0f\u306e\u30e1\u30fc\u30eb\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-51157\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1.png\" alt=\"\u30ec\u30b9\u30db\u309a\u30f3\u30b7\u30d5\u3099\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30cf\u309a\u30fc\u30c8\u914d\u4fe1\" width=\"616\" height=\"320\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1.png 1248w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1-300x156.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1-1024x532.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u30fb\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u914d\u4fe1-768x399.png 768w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%94%BB%E5%83%8F%E3%81%AB%E4%BE%9D%E5%AD%98%E3%81%97%E3%81%99%E3%81%8E%E3%81%AA%E3%81%84\"><\/span><span style=\"font-weight: 400\">\u753b\u50cf\u306b\u4f9d\u5b58\u3057\u3059\u304e\u306a\u3044<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3067\u306f\u753b\u50cf\u3092\u591a\u304f\u4f7f\u3048\u307e\u3059\u304c\u3001\u53d7\u4fe1\u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u753b\u50cf\u3060\u3051\u306e\u30e1\u30fc\u30eb\u306f\u30e1\u30fc\u30eb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u306f\u3058\u304b\u308c\u3084\u3059\u3044\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002\u753b\u50cf\u3092\u7528\u3044\u308b\u5834\u5408\u3001\u30c6\u30ad\u30b9\u30c8\u3068\u753b\u50cf\u306e\u5272\u5408\u306f7\uff1a3\u4ee5\u4e0b\u3067\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\"><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-51158\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408.jpg\" alt=\"\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408\" width=\"433\" height=\"332\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408.jpg 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408-300x230.jpg 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/\u753b\u50cf\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u5272\u5408-768x590.jpg 768w\" sizes=\"auto, (max-width: 433px) 100vw, 433px\" \/><\/a><\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u753b\u50cf\u3060\u3051\u3067\u5185\u5bb9\u3092\u4f1d\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30c6\u30ad\u30b9\u30c8\u3067\u3082\u60c5\u5831\u304c\u7406\u89e3\u3067\u304d\u308b\u69cb\u6210\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<br \/>\n<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%A1%E3%83%BC%E3%83%A9%E3%83%BC%E5%AF%BE%E5%BF%9C%E3%82%92%E7%A2%BA%E8%AA%8D%E3%81%99%E3%82%8B\"><\/span><span style=\"font-weight: 400\">\u30e1\u30fc\u30e9\u30fc\u5bfe\u5fdc\u3092\u78ba\u8a8d\u3059\u308b<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Gmail\u3084Outlook\u306a\u3069\u3001\u30e1\u30fc\u30eb\u30bd\u30d5\u30c8\u306b\u3088\u3063\u3066\u8868\u793a\u306e\u4ed5\u7d44\u307f\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u4f5c\u6210\u3057\u305f\u30e1\u30fc\u30eb\u304c\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u308b\u304b\u4e8b\u524d\u306b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u591a\u304f\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u300c\u30c6\u30b9\u30c8\u30e1\u30fc\u30eb\u300d\u6a5f\u80fd\u3067\u4e8b\u524d\u78ba\u8a8d\u304c\u53ef\u80fd\u3067\u3059\u3002\u30ec\u30a4\u30a2\u30a6\u30c8\u5d29\u308c\u3084\u6587\u5b57\u5316\u3051\u306a\u3069\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E8%BF%B7%E6%83%91%E3%83%A1%E3%83%BC%E3%83%AB%E5%AF%BE%E7%AD%96%E3%82%92%E8%A1%8C%E3%81%86\"><\/span><span style=\"font-weight: 400\">\u8ff7\u60d1\u30e1\u30fc\u30eb\u5bfe\u7b56\u3092\u884c\u3046<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u5185\u5bb9\u3084\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">SPF\u30fbDKIM\u30fbDMARC\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306b\u52a0\u3048\u3001\u4e0d\u81ea\u7136\u306a\u30ea\u30f3\u30af\u3084\u904e\u5270\u306a\u88c5\u98fe\u3092\u907f\u3051\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%80%8CHTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%8C%E8%BF%B7%E6%83%91%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AB%E3%81%AA%E3%82%8B%E3%80%8D%E3%81%AF%E6%9C%AC%E5%BD%93%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">\u300cHTML\u30e1\u30fc\u30eb\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u306a\u308b\u300d\u306f\u672c\u5f53\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u6b63\u3057\u304f\u4f5c\u6210\u30fb\u914d\u4fe1\u3059\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5185\u5bb9\u3084\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u3053\u308c\u306fHTML\u30e1\u30fc\u30eb\u81ea\u4f53\u304c\u539f\u56e0\u3068\u3044\u3046\u3088\u308a\u3082\u3001\u300c\u53d7\u4fe1\u5074\u306b\u3068\u3063\u3066\u4e0d\u81ea\u7136\u306a\u30e1\u30fc\u30eb\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u3053\u3068\u304c\u4e3b\u306a\u7406\u7531\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/p>\n<p><b>\u274c \u753b\u50cf\u3060\u3051\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u308b<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\"> \u30c6\u30ad\u30b9\u30c8\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u30e1\u30fc\u30eb\u306f\u3001\u4e0d\u5be9\u306a\u30e1\u30fc\u30eb\u3068\u5224\u65ad\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><b>\u274c \u4e0d\u81ea\u7136\u306a\u30ea\u30f3\u30af\u304c\u591a\u3044<\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\"> \u77ed\u7e2eURL\u3084\u30ea\u30f3\u30af\u306e\u591a\u7528\u306f\u3001\u30b9\u30d1\u30e0\u3068\u307f\u306a\u3055\u308c\u308b\u539f\u56e0\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><b>\u274c \u8a8d\u8a3c\u8a2d\u5b9a\u304c\u3055\u308c\u3066\u3044\u306a\u3044<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400\"> SPF\u30fbDKIM\u30fbDMARC\u3068\u3044\u3063\u305f\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u304c\u672a\u8a2d\u5b9a\u306e\u5834\u5408\u3001\u4fe1\u983c\u6027\u304c\u4f4e\u3044\u3068\u5224\u65ad\u3055\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u4e0a\u8a18\u306e\u3088\u3046\u306a\u30dd\u30a4\u30f3\u30c8\u306b\u6ce8\u610f\u3059\u308c\u3070\u3001HTML\u30e1\u30fc\u30eb\u3067\u3082\u554f\u984c\u306a\u304f\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002\u30c6\u30ad\u30b9\u30c8\u3068\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u4fdd\u3061\u3001\u9069\u5207\u306a\u8a2d\u5b9a\u3092\u884c\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u307e\u305f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u3053\u3046\u3057\u305f\u5bfe\u7b56\u3082\u7c21\u5358\u306b\u884c\u3048\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5fc3\u3057\u3066\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E4%BD%9C%E6%88%90%E3%83%BB%E9%85%8D%E4%BF%A1%E3%81%AB%E3%81%8A%E3%81%99%E3%81%99%E3%82%81%E3%81%AE%E3%83%A1%E3%83%BC%E3%83%AB%E9%85%8D%E4%BF%A1%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B96%E9%81%B8\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u30fb\u914d\u4fe1\u306b\u304a\u3059\u3059\u3081\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b96\u9078<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u3001\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u4f5c\u6210\u30fb\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3067\u76f4\u611f\u7684\u306b\u30e1\u30fc\u30eb\u3092\u4f5c\u308c\u308b\u307b\u304b\u3001\u8868\u793a\u5d29\u308c\u5bfe\u7b56\u3084\u52b9\u679c\u6e2c\u5b9a\u306a\u3069\u3082\u307e\u3068\u3081\u3066\u884c\u3048\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u3067\u3082\u5b89\u5fc3\u3057\u3066\u904b\u7528\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u3053\u3053\u3067\u306f\u3001HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u6210\u30fb\u914d\u4fe1\u306b\u5bfe\u5fdc\u3057\u305f\u4e3b\u306a\u30b5\u30fc\u30d3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Benchmark_Email\"><\/span><span style=\"font-weight: 400\">Benchmark Email<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-50531 size-full\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-scaled.png\" alt=\"Benchmark Email \u30b5\u30fc\u30d2\u3099\u30b9\u30b5\u30a4\u30c8\" width=\"2560\" height=\"1536\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-scaled.png 2560w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-300x180.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-1024x614.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-768x461.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-1536x922.png 1536w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/05\/Benchmark-Email-\u30b5\u30fc\u30d3\u30b9\u30b5\u30a4\u30c8-2048x1229.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">Benchmark Email\u306f\u3001\u521d\u5fc3\u8005\u3067\u3082\u904b\u7528\u3057\u3084\u3059\u3044\u64cd\u4f5c\u6027\u304c\u7279\u5fb4\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u306f\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u4e2d\u5fc3\u3067\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3082\u5145\u5b9f\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30c7\u30b6\u30a4\u30f3\u304c\u82e6\u624b\u3067\u3082\u898b\u6804\u3048\u306e\u826f\u3044\u30e1\u30eb\u30de\u30ac\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304c\u9b45\u529b\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u307e\u305f\u3001\u914d\u4fe1\u5f8c\u306e\u5206\u6790\u3082\u5206\u304b\u308a\u3084\u3059\u304f\u3001\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u904b\u7528\u3067\u304d\u3001\u6539\u5584\u304c\u3057\u3084\u3059\u3044\u70b9\u3082\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u306f\u3058\u3081\u3066\u306e\u30e1\u30eb\u30de\u30ac\u904b\u7528\u304b\u3089\u3001\u7d99\u7d9a\u7684\u306a\u6210\u679c\u6539\u5584\u307e\u3067\u3001\u5e45\u5e83\u304f\u5bfe\u5fdc\u3067\u304d\u308b\u30d0\u30e9\u30f3\u30b9\u578b\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">Benchmark Email\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/www.benchmarkemail.com\/jp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Blastmail\"><\/span><span style=\"font-weight: 400\">Blastmail<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49405 size-full\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8.png\" alt=\"Blastmail\u30b5\u30a4\u30c8\" width=\"1600\" height=\"927\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8.png 1600w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8-300x174.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8-1024x593.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8-768x445.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Blastmail\u30b5\u30a4\u30c8-1536x890.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">Blastmail\u306f\u56fd\u5185\u5411\u3051\u306b\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3001\u4f01\u696d\u306e\u30e1\u30eb\u30de\u30ac\u904b\u7528\u306b\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u3072\u3068\u901a\u308a\u5099\u3048\u3066\u3044\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u6d77\u5916\u30c4\u30fc\u30eb\u306b\u6bd4\u3079\u308b\u3068\u6a5f\u80fd\u306f\u30b7\u30f3\u30d7\u30eb\u306b\u307e\u3068\u3081\u3089\u308c\u3066\u304a\u308a\u3001\u56fd\u5185\u306e\u5546\u7fd2\u6163\u306b\u5408\u308f\u305b\u305f\u904b\u7528\u304c\u3057\u3084\u3059\u304f\u3001\u5b89\u5b9a\u3057\u305f\u914d\u4fe1\u3092\u91cd\u8996\u3059\u308b\u4f01\u696d\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u591a\u6a5f\u80fd\u3059\u304e\u308b\u30c4\u30fc\u30eb\u306f\u4e0d\u8981\u3068\u3044\u3046\u65b9\u5411\u3051\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">Blastmail\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/blastmail.jp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E9%85%8D%E9%85%8D%E3%83%A1%E3%83%BC%E3%83%AB\"><\/span><span style=\"font-weight: 400\">\u914d\u914d\u30e1\u30fc\u30eb<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49403\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8.png\" alt=\"\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8\" width=\"1600\" height=\"927\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8.png 1600w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8-300x174.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8-1024x593.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8-768x445.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/\u914d\u914d\u30e1\u30fc\u30eb\u30b5\u30a4\u30c8-1536x890.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">\u914d\u914d\u30e1\u30fc\u30eb\u306f\u3001\u6cd5\u4eba\u5411\u3051\u306e\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3068\u3057\u3066\u5c0e\u5165\u5b9f\u7e3e\u304c\u591a\u304f\u3001\u30b5\u30dd\u30fc\u30c8\u304c\u624b\u539a\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u914d\u4fe1\u8a2d\u8a08\u3084\u6539\u5584\u306e\u76f8\u8ac7\u304c\u3067\u304d\u308b\u70b9\u3082\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u6599\u91d1\u306f\u3084\u3084\u9ad8\u3081\u3067\u3059\u304c\u3001\u78ba\u5b9f\u306b\u6210\u679c\u3092\u51fa\u3057\u305f\u3044\u65b9\u3001\u904b\u7528\u3092\u5b9a\u7740\u3055\u305b\u305f\u3044\u4f01\u696d\u306b\u5411\u304f\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u914d\u914d\u30e1\u30fc\u30eb\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/www.hai2mail.jp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"WiLL_Mail%EF%BC%88%E3%82%A6%E3%82%A3%E3%83%AB%E3%83%A1%E3%83%BC%E3%83%AB%EF%BC%89\"><\/span><span style=\"font-weight: 400\">WiLL Mail\uff08\u30a6\u30a3\u30eb\u30e1\u30fc\u30eb\uff09<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49411\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8.jpg\" alt=\"Willmail\u30b5\u30a4\u30c8\" width=\"1600\" height=\"927\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8.jpg 1600w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8-300x174.jpg 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8-1024x593.jpg 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8-768x445.jpg 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Willmail\u30b5\u30a4\u30c8-1536x890.jpg 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">WiLL Mail\u306f\u3001HTML\u30e1\u30fc\u30eb\u4f5c\u6210\u304c\u7c21\u5358\u306a\u70b9\u306b\u5f37\u307f\u3092\u6301\u3064\u30e1\u30fc\u30eb\u914d\u4fe1\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3067\u30d1\u30fc\u30c4\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5f62\u5f0f\u306e\u305f\u3081\u3001\u5236\u4f5c\u7d4c\u9a13\u304c\u306a\u304f\u3066\u3082\u898b\u3084\u3059\u3044\u30e1\u30eb\u30de\u30ac\u3092\u4f5c\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u30c7\u30b6\u30a4\u30f3\u91cd\u8996\u306e\u30e1\u30eb\u30de\u30ac\u904b\u7528\u3084\u3001\u5236\u4f5c\u5de5\u6570\u3092\u6e1b\u3089\u3057\u305f\u3044\u5834\u5408\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">WiLL Mail\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/willcloud.jp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cuenote_FC\"><\/span><span style=\"font-weight: 400\">Cuenote FC<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49404\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8.png\" alt=\"Cuenote\u30b5\u30a4\u30c8\" width=\"1600\" height=\"931\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8.png 1600w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8-300x175.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8-1024x596.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8-768x447.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Cuenote\u30b5\u30a4\u30c8-1536x894.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">Cuenote FC\u306f\u3001\u5927\u898f\u6a21\u914d\u4fe1\u3084\u5230\u9054\u7387\u3092\u91cd\u8996\u3059\u308b\u4f01\u696d\u5411\u3051\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u5927\u91cf\u914d\u4fe1\u3067\u3082\u5b89\u5b9a\u3057\u3066\u9001\u308c\u308b\u8a2d\u8a08\u3067\u3001\u914d\u4fe1\u54c1\u8cea\u3092\u512a\u5148\u3057\u305f\u3044\u4f01\u696d\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305d\u306e\u5206\u3001\u8cbb\u7528\u306f\u9ad8\u3081\u306b\u306a\u308a\u3084\u3059\u304f\u3001\u500b\u4eba\u3084\u5c0f\u898f\u6a21\u4e8b\u696d\u306b\u306f\u30aa\u30fc\u30d0\u30fc\u30b9\u30da\u30c3\u30af\u306a\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002Cuenote FC\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/www.cuenote.jp\/fc\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mailchimp\"><\/span><span style=\"font-weight: 400\">Mailchimp<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49410\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8.png\" alt=\"Mailchimp\u30b5\u30a4\u30c8\" width=\"1600\" height=\"888\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8.png 1600w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8-300x167.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8-1024x568.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8-768x426.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8-1536x852.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">Mailchimp\u306f\u4e16\u754c\u7684\u306b\u6709\u540d\u306a\u30e1\u30fc\u30eb\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u8c4a\u5bcc\u3067\u30c7\u30b6\u30a4\u30f3\u6027\u304c\u9ad8\u3044\u306e\u304c\u9b45\u529b\u3067\u3059\u3002<\/span><span style=\"font-weight: 400\"><br \/>\n<\/span><span style=\"font-weight: 400\">\u6d77\u5916\u5411\u3051\u914d\u4fe1\u3084\u3001\u82f1\u8a9eUI\u3067\u3082\u554f\u984c\u306a\u3044\u5834\u5408\u306b\u306f\u5f37\u529b\u306a\u9078\u629e\u80a2\u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305f\u3060\u3057\u3001\u65e5\u672c\u8a9e\u306e\u7ba1\u7406\u753b\u9762\u3084\u65e5\u672c\u8a9e\u30b5\u30dd\u30fc\u30c8\u306f\u306a\u3044\u305f\u3081\u3001\u793e\u5185\u904b\u7528\u4f53\u5236\u306b\u5408\u308f\u305b\u3066\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">Mailchimp\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306f<\/span><a href=\"https:\/\/mailchimp.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">\u3053\u3061\u3089<\/span><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AB%E9%96%A2%E3%81%99%E3%82%8B%E3%82%88%E3%81%8F%E3%81%82%E3%82%8B%E8%B3%AA%E5%95%8F%EF%BC%88FAQ%EF%BC%89\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%81%AF%E4%BD%95%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">Q. HTML\u30e1\u30fc\u30eb\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u3068\u306f\u3001HTML\u3067\u4f5c\u6210\u3055\u308c\u305f\u30e1\u30fc\u30eb\u5f62\u5f0f\u306e\u3053\u3068\u3067\u3001\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u3089\u308c\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u6bd4\u3079\u3066\u3001\u5546\u54c1\u7d39\u4ecb\u3084\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u544a\u77e5\u306a\u3069\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E5%8D%B1%E9%99%BA%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">Q. HTML\u30e1\u30fc\u30eb\u306f\u5371\u967a\u3067\u3059\u304b\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u81ea\u4f53\u304c\u5371\u967a\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6b63\u3057\u304f\u4f5c\u6210\u30fb\u914d\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb\u3067\u3042\u308c\u3070\u3001\u5b89\u5168\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4e0d\u5be9\u306a\u9001\u4fe1\u5143\u3084\u4e0d\u81ea\u7136\u306a\u5185\u5bb9\u306e\u30e1\u30fc\u30eb\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E9%96%8B%E5%B0%81%E7%8E%87%E3%81%8C%E3%82%8F%E3%81%8B%E3%82%8A%E3%81%BE%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">Q. HTML\u30e1\u30fc\u30eb\u306f\u958b\u5c01\u7387\u304c\u308f\u304b\u308a\u307e\u3059\u304b\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u306f\u3044\u3002HTML\u30e1\u30fc\u30eb\u3067\u306f\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u306a\u3069\u306e\u52b9\u679c\u6e2c\u5b9a\u304c\u53ef\u80fd\u3067\u3059\u3002\u914d\u4fe1\u7d50\u679c\u3092\u5206\u6790\u3057\u3001\u5185\u5bb9\u306e\u6539\u5584\u306b\u3064\u306a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E8%BF%B7%E6%83%91%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AB%E3%81%AA%E3%82%8A%E3%82%84%E3%81%99%E3%81%84%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">Q. HTML\u30e1\u30fc\u30eb\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u304b\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u753b\u50cf\u3060\u3051\u306e\u30e1\u30fc\u30eb\u3084\u3001\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u8a2d\u5b9a\u304c\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u8ff7\u60d1\u30e1\u30fc\u30eb\u3068\u5224\u5b9a\u3055\u308c\u308b\u30ea\u30b9\u30af\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u57fa\u672c\u7684\u306a\u5bfe\u7b56\u3092\u884c\u3048\u3070\u554f\u984c\u306a\u304f\u914d\u4fe1\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Q_HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%A8%E3%83%86%E3%82%AD%E3%82%B9%E3%83%88%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%AF%E3%81%A9%E3%81%A1%E3%82%89%E3%82%92%E4%BD%BF%E3%81%86%E3%81%B9%E3%81%8D%E3%81%A7%E3%81%99%E3%81%8B%EF%BC%9F\"><\/span><span style=\"font-weight: 400\">Q. HTML\u30e1\u30fc\u30eb\u3068\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u306f\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u3069\u3061\u3089\u304c\u9069\u3057\u3066\u3044\u308b\u304b\u306f\u76ee\u7684\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u8ca9\u4fc3\u3084\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306b\u306fHTML\u30e1\u30fc\u30eb\u3001\u55b6\u696d\u3084\u500b\u5225\u9023\u7d61\u306b\u306f\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u3068\u4f7f\u3044\u5206\u3051\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/span><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Mailchimp\u30b5\u30a4\u30c8.png\"><br \/>\n<\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"HTML%E3%83%A1%E3%83%BC%E3%83%AB%E9%85%8D%E4%BF%A1%E3%81%AB%E3%81%AF%E3%80%8CBenchmark_Email%E3%80%8D%E3%81%8C%E3%81%8A%E3%81%99%E3%81%99%E3%82%81\"><\/span><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u306f\u300cBenchmark Email\u300d\u304c\u304a\u3059\u3059\u3081<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u6210\u3084\u914d\u4fe1\u3092\u3053\u308c\u304b\u3089\u59cb\u3081\u308b\u5834\u5408\u306f\u3001\u64cd\u4f5c\u304c\u7c21\u5358\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u30c4\u30fc\u30eb\u3092\u5229\u7528\u3059\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u7279\u306b\u300cBenchmark Email\u300d\u306f\u3001\u521d\u5fc3\u8005\u3067\u3082\u4f7f\u3044\u3084\u3059\u304f\u3001HTML\u30e1\u30fc\u30eb\u306e\u4f5c\u6210\u304b\u3089\u914d\u4fe1\u3001\u52b9\u679c\u6e2c\u5b9a\u307e\u3067\u3092\u4e00\u62ec\u3067\u884c\u3048\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u3053\u3053\u3067\u306f\u3001\u300cBenchmark Email\u300d\u306e\u30e1\u30ea\u30c3\u30c8\u30923\u3064\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%81%8A%E3%81%97%E3%82%83%E3%82%8C%E3%81%AAHTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%81%8C%E7%B0%A1%E5%8D%98%E3%81%AB%E4%BD%9C%E6%88%90%E3%81%A7%E3%81%8D%E3%82%8B\"><\/span><span style=\"font-weight: 400\">\u304a\u3057\u3083\u308c\u306aHTML\u30e1\u30fc\u30eb\u304c\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u308b\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u3067\u64cd\u4f5c\u3067\u304d\u308b\u30a8\u30c7\u30a3\u30bf\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u7c21\u5358\u306bHTML\u30e1\u30fc\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3082\u8c4a\u5bcc\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30c7\u30b6\u30a4\u30f3\u306b\u60a9\u307e\u305a\u30b9\u30e0\u30fc\u30ba\u306b\u4f5c\u6210\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/NXG\u30e1\u30fc\u30eb\u4f5c\u6210gif.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-48796 size-full\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/NXG\u30e1\u30fc\u30eb\u4f5c\u6210gif.gif\" alt=\"\u30e1\u30eb\u30de\u30ac\u4f5c\u6210gif\" width=\"1920\" height=\"1080\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E9%A1%A7%E5%AE%A2%E7%AE%A1%E7%90%86%E3%81%8C%E6%A5%BD%E3%81%AB%E3%81%A7%E3%81%8D%E3%82%8B\"><\/span><span style=\"font-weight: 400\">\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">\u30e1\u30fc\u30eb\u914d\u4fe1\u306b\u5fc5\u8981\u306a\u9867\u5ba2\u60c5\u5831\u306f\u3001\u30ea\u30b9\u30c8\u6a5f\u80fd\u3067\u307e\u3068\u3081\u3066\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002\u5c5e\u6027\u3054\u3068\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u5206\u3051\u3084\u3001\u958b\u5c01\u30fb\u30af\u30ea\u30c3\u30af\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u30ea\u30b9\u30c8\u4f5c\u6210\u3082\u53ef\u80fd\u306a\u305f\u3081\u3001\u3088\u308a\u52b9\u679c\u7684\u306a\u914d\u4fe1\u306b\u3064\u306a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u3055\u3089\u306b\u3001 \u30e1\u30fc\u30eb\u914d\u4fe1\u5f8c\u306e\u30a8\u30e9\u30fc\u30a2\u30c9\u30ec\u30b9\u3084\u914d\u4fe1\u505c\u6b62\u30a2\u30c9\u30ec\u30b9\u306f\u30b7\u30b9\u30c6\u30e0\u304c\u81ea\u52d5\u7ba1\u7406\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5b89\u5fc3\u3057\u3066\u30e1\u30eb\u30de\u30ac\u904b\u7528\u3092\u884c\u3063\u3066\u3044\u305f\u3060\u3051\u307e\u3059\u3002 <\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-48785\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b.png\" alt=\"\u30ea\u30b9\u30c8\u753b\u50cf\" width=\"2048\" height=\"1163\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b.png 2048w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b-300x170.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b-1024x582.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b-768x436.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u9867\u5ba2\u7ba1\u7406\u304c\u697d\u306b\u3067\u304d\u308b-1536x872.png 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%8A%B9%E6%9E%9C%E6%B8%AC%E5%AE%9A%E3%81%8C%E7%B0%A1%E5%8D%98%E3%81%AB%E3%81%A7%E3%81%8D%E3%82%8B\"><\/span><span style=\"font-weight: 400\">\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400\">Benchmark Email\u3067\u306f\u3001\u7121\u6599\u30d7\u30e9\u30f3\u3067\u3082\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30ec\u30dd\u30fc\u30c8\u6a5f\u80fd\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u30ec\u30dd\u30fc\u30c8\u3067\u306f\u3001\u958b\u5c01\u7387\u3084\u30af\u30ea\u30c3\u30af\u7387\u3001\u30ea\u30f3\u30af\u306e\u30af\u30ea\u30c3\u30af\u6570\u306a\u3069\u3001\u30e1\u30fc\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u30b0\u30e9\u30d5\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/span><span style=\"font-weight: 400\">\u3069\u308c\u3060\u3051\u306e\u53d7\u4fe1\u8005\u304c\u30e1\u30fc\u30eb\u3092\u898b\u3066\u304f\u308c\u305f\u306e\u304b\u3001\u3069\u3093\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u8208\u5473\u3092\u6301\u3063\u305f\u306e\u304b\u3092\u628a\u63e1\u3059\u308b\u306e\u306b\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-48784\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b.png\" alt=\"\u30ec\u30dd\u30fc\u30c8\u753b\u50cf\" width=\"1536\" height=\"851\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b.png 1536w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b-300x166.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b-1024x567.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2025\/12\/\u52b9\u679c\u6e2c\u5b9a\u304c\u7c21\u5358\u306b\u3067\u304d\u308b-768x426.png 768w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81%EF%BC%9A%E7%9B%AE%E7%9A%84%E3%81%AB%E5%90%88%E3%82%8F%E3%81%9B%E3%81%A6HTML%E3%83%A1%E3%83%BC%E3%83%AB%E3%82%92%E4%BD%BF%E3%81%84%E5%88%86%E3%81%91%E3%82%88%E3%81%86\"><\/span><span style=\"font-weight: 400\">\u307e\u3068\u3081\uff1a\u76ee\u7684\u306b\u5408\u308f\u305b\u3066HTML\u30e1\u30fc\u30eb\u3092\u4f7f\u3044\u5206\u3051\u3088\u3046<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">HTML\u30e1\u30fc\u30eb\u306f\u3001\u753b\u50cf\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u4f7f\u3063\u3066\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u3089\u308c\u308b\u52b9\u679c\u7684\u306a\u30e1\u30fc\u30eb\u914d\u4fe1\u624b\u6cd5\u3067\u3059\u3002\u5546\u54c1\u7d39\u4ecb\u3084\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306a\u3069\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u884c\u52d5\u3092\u4fc3\u3057\u305f\u3044\u5834\u9762\u3067\u7279\u306b\u529b\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u305f\u3060\u3057\u3001\u3059\u3079\u3066\u306e\u5834\u9762\u3067HTML\u30e1\u30fc\u30eb\u304c\u6700\u9069\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u55b6\u696d\u30e1\u30fc\u30eb\u3084\u91cd\u8981\u306a\u304a\u77e5\u3089\u305b\u306a\u3069\u3001\u30c6\u30ad\u30b9\u30c8\u30e1\u30fc\u30eb\u304c\u9069\u3057\u3066\u3044\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u76ee\u7684\u3084\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u5f62\u5f0f\u3092\u9078\u3076\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\u307e\u305a\u306f\u81ea\u5206\u306e\u7528\u9014\u306b\u5408\u3063\u305f\u65b9\u6cd5\u3092\u9078\u3073\u3001\u7121\u7406\u306e\u306a\u3044\u5f62\u3067\u30e1\u30fc\u30eb\u914d\u4fe1\u3092\u59cb\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p><a href=\"https:\/\/www.benchmarkemail.com\/jp\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49386 size-full\" src=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078.png\" alt=\"\u307e\u305a\u306f\u7121\u6599\u3067\u59cb\u3081\u305f\u3044\u65b9\u3078\" width=\"1920\" height=\"900\" srcset=\"https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078.png 1920w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078-300x141.png 300w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078-1024x480.png 1024w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078-768x360.png 768w, https:\/\/www.benchmarkemail.com\/jp\/wp-content\/uploads\/sites\/10\/2026\/03\/Bemchmark-Email-\u307e\u305a\u306f\u7121\u6599\u3067\u8a66\u3057\u305f\u3044\u65b9\u3078-1536x720.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<p>\uff08\u95a2\u9023\u8a18\u4e8b\uff09<br \/>\n\u30fb<a href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/how-to-start-email-marketing\/\" target=\"_blank\" rel=\"noopener\">\u3010\u30e1\u30eb\u30de\u30ac\u306e\u59cb\u3081\u65b9\u30ac\u30a4\u30c9\u30118\u30b9\u30c6\u30c3\u30d7\u3067\u904b\u7528\u30d5\u30ed\u30fc\u3092\u307e\u308b\u3054\u3068\u89e3\u8aac<\/a><br \/>\n\u30fb<a href=\"https:\/\/www.benchmarkemail.com\/jp\/blog\/how-to-increase-your-email-open-rate\/\" target=\"_blank\" rel=\"noopener\">\u30e1\u30eb\u30de\u30ac\u306e\u958b\u5c01\u7387\u3092\u4e0a\u3052\u308b\u65b9\u6cd5\u3068\u306f\uff1f9\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u3054\u7d39\u4ecb<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>HTML\u30e1\u30fc\u30eb\u3068\u306f\u3001\u753b\u50cf\u3084\u8272\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u4f7f\u3063\u3066\u8996\u899a\u7684\u306b\u60c5\u5831\u3092\u4f1d\u3048\u3089\u308c\u308b\u30e1\u30fc\u30eb\u5f62\u5f0f\u306e\u3053\u3068\u3067\u3059\u3002\u30e1\u30eb\u30de\u30ac\u3084\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u30e1\u30fc\u30eb\u3067\u3088\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u30af\u30ea\u30c3\u30af\u7387\u3084\u958b\u5c01\u7387\u306e\u6539\u5584\u306b\u5f79\u7acb\u3064\u624b\u6cd5\u3068\u3057\u3066\u591a\u304f\u306e\u4f01\u696d\u304c\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002 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