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Email Marketing Glossary.

Clear, no-fluff definitions of every email marketing term that matters—from open rates to double opt-in. 

 

Email Engagement Rate

Email engagement rate is a measure of how actively your subscribers interact with your emails — through opens, clicks, replies, and conversions. It's a key signal of list health and deliverability.

Also known as: engagement rate, subscriber engagement

Engagement rate is the pulse of your email program. Mailbox providers watch it closely: the more your subscribers open, click, and act, the more they trust you to reach the inbox.

How is engagement rate measured?

There's no single formula — it's a blend of opens, clicks, click-to-open rate, replies, and conversions over time. Many marketers track an active-subscriber percentage: those who engaged within a recent window.

Why does engagement matter?

Gmail, Yahoo, and others use engagement signals to decide inbox placement. Low engagement drags your whole program toward spam, even for subscribers who do want your mail.

How do you improve engagement?

Segment for relevance, personalize, send at the right cadence, and sunset chronically inactive subscribers so your active audience carries more weight.

Related terms

Open Rate Click-Through Rate (CTR) Click-to-Open Rate (CTOR) Conversion Rate Bounce Rate Unsubscribe Rate

Related reading from Drip

How We Increased Our Email Engagement by Telling Stories Email Marketing Analytics: 7 Metrics You Need to Track

Frequently asked questions

What is email engagement rate?
Email engagement rate measures how actively subscribers interact with your emails through opens, clicks, replies, and conversions. It's a broad signal of list health rather than a single fixed metric.
How is email engagement measured?
It's a blend of metrics — opens, clicks, click-to-open rate, replies, and conversions over time. A common approach is tracking the percentage of subscribers who engaged within a recent window, such as 30 or 90 days.
Why does email engagement matter for deliverability?
Mailbox providers like Gmail and Yahoo use engagement signals to decide whether your emails reach the inbox. Low engagement pulls your whole program toward spam, even affecting subscribers who want your mail.
How do I improve email engagement?
Segment for relevance, personalize content, send at a sensible cadence, write compelling subject lines, and sunset chronically inactive subscribers so your engaged audience represents more of your list.
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