What is the difference between a subscriber and a contact?

A subscriber has opted in to receive emails and can be emailed. A contact might be anyone in your database, including unsubscribed, bounced, or incomplete records. Not all contacts are subscribers.

How do I know if a subscriber is engaged?

Track engagement metrics like opens, clicks, and website activity. Subscribers who have not opened or clicked in 3-6 months are likely disengaged and should be re-engaged or removed.

What is Subscriber? - Definition & Guide

Definition

A subscriber is an individual who has provided their email address and given permission to receive your emails. Subscribers are the foundation of email marketing. They have willingly joined your list and expect to receive valuable content from you.

Why It Matters

Subscribers represent real people interested in your brand. Treating them well with relevant, valuable content builds trust and drives results. Understanding your subscribers' preferences and behavior helps you serve them better and improve your marketing effectiveness.

How It Works

People become subscribers by entering their email in a signup form and confirming their subscription (in double opt-in systems). Their data is stored in your email platform, and they receive emails based on their subscription preferences, segments, and your sending schedule.

Best Practices

1Respect subscriber preferences for frequency and content type
2Provide value in every email you send
3Make it easy to unsubscribe or update preferences
4Collect relevant data to personalize their experience
5Re-engage inactive subscribers before removing them

Subscriber Status Table

Status	Meaning	Can receive marketing?
Active	Opted in and eligible	Yes
Unsubscribed	Opted out of marketing	No
Bounced	Address failed delivery	No or limited retry depending on bounce type
Suppressed	Blocked from sends for a reason	No

Subscriber Data Table

Data field	Why it matters	Email use
Consent source	Proves permission	Compliance and trust
Preferences	Shows requested topics or cadence	Segmentation
Engagement history	Shows interest and list health	Re-engagement or VIP targeting
Custom attributes	Adds context	Personalization and lifecycle triggers

Subscriber Lifecycle Table

Stage	Signal	Email strategy
New subscriber	Recent opt-in	Welcome and expectation setting
Engaged subscriber	Clicks or replies recently	Send deeper value or offers
Inactive subscriber	No engagement for defined window	Re-engagement or reduced cadence
Churned subscriber	Unsubscribed or suppressed	Respect status and retain suppression record