There are several criteria you can use to segment your email list, including:
Demographics: Age, gender, income level, education, etc. Geographics: Location, time zone, language, etc. Behavior: Purchase history, email open rates, click-through rates, etc. Psychographics: Interests, values, lifestyle, etc. Engagement Level: Active, inactive, new subscribers, etc. Customer Journey Stage: Awareness, consideration, decision, etc.