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Deliverability Letter

Subscriber

Also known as: Recipient

A subscriber is someone who gave you clear permission to receive your emails. They chose to join your list and expect useful, relevant messages from you.

A subscriber is a person on your email list who agreed to hear from you. They might have joined through a signup form, a checkout, or another clear opt in. The key part is permission. They know you will email them and they accept that.

Subscribers matter because they are the people who see your campaigns. Your email tool uses subscriber data to decide who gets which message and when. Healthy lists are full of people who open, click, and buy. That engagement keeps your deliverability strong.

For example, you might tag new subscribers from a popup as "newsletter" and customers from checkout as "buyers". You can then send each group different emails that match what they care about. This keeps your messages relevant and reduces unsubscribes. Over time, you build a list that trusts you and responds.