Segments enable you to target a portion of your contacts for targeted marketing. Using a list Segment allows you to send to a specific portion of your list according to common criteria. For example, you can create a Segment that only contains contacts that live in California. Then, you can send an email to those contacts that only has information pertinent to California residents.

Targeted marketing is a very effective method of marketing your business via email. Instead of sending blanket emails to all of your contacts, you can segment your lists and send each segment only the most relevant information. This makes your campaigns more effective.

You can segment your list based on any of the fields present in the contact list.