Email Unsubscribe Rate

Metric · 2 min read

Email unsubscribe rate

Email Unsubscribe Rate tells you how many recipients opted out of your list after receiving an email. Here’s everything you need to know: what it is, why it matters, how to calculate it, and how to reduce it!

Formula

Email Unsubscribe Rate (%)=UnsubscribesEmails Delivered× 100

Example. If you send 5,000 emails and 25 people unsubscribe, your Email Unsubscribe Rate is 0.5%. This metric helps you gauge content alignment with subscriber expectations.

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Email Unsubscribe Rate (%)—

Overview

What it is

Email Unsubscribe Rate is the percentage of recipients who choose to opt out of receiving further emails from you after opening or receiving a campaign. It helps evaluate your content relevance and audience satisfaction.

Why it matters

A high Email Unsubscribe Rate can signal poor targeting, irrelevant content, or excessive email frequency. Monitoring it helps maintain list quality and protects your sender reputation.

How it is calculated

Divide the number of unsubscribes by the number of delivered emails and multiply by 100 to get the percentage.

Good and bad values

A good value

A good Email Unsubscribe Rate is typically below 0.2%. Rates in this range suggest your emails are targeted, useful, and well-timed.

A bad value

A rate above 0.5% is often a warning sign of content fatigue or poor targeting. Consistently high rates can hurt your email engagement and domain reputation.

Do and avoid

Do

Use these tips to keep subscribers happy and reduce opt-outs.

  1. 01

    Let users set preferences

    Offer frequency and content options instead of forcing users to unsubscribe entirely.

  2. 02

    Keep content relevant

    Personalize your content based on user behavior or lifecycle stage to keep it meaningful.

  3. 03

    Monitor email frequency

    Don’t overwhelm your audience—find the right cadence through testing and feedback.

Avoid

  1. Don’t bury your unsubscribe link or ignore spikes in opt-outs. Avoid batch-blasting one-size-fits-all messages.

Customer stories

What users are saying

Not testimonials. Comment threads.

Real things real customers said — each quote pinned to a specific claim, straight from the quotes database.

A9re: one source of truth
Mark SimmonsMark SimmonsCMO, Pürblack®
“We had six or seven different channels and no single source of truth — it was almost impossible, a lot of guesswork.”
C3re: golden data
Nodari RizunNodari RizunFounder & CEO, Pürblack®
“Golden data is clean data — the measure of reality, true and not false, that you can trust based on its source. If you have that, you're good.”
E5re: dashboards vs truth
Nodari RizunNodari RizunFounder & CEO, Pürblack®
“Most businesses look at a Shopify or Google Analytics dashboard and think it's the source of truth. It's not — that data was never cleaned.”

Your New Normal

Calculate Email Unsubscribe Rate on your own data.

OWOX Data Marts helps you track unsubscribe trends by campaign, audience segment, and timing—so you can adjust messaging, frequency, and content before losing more subscribers.

  • No AI hallucinations
  • Analyst-governed definitions
  • Every number traces to SQL
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