Bounce Rate (Email)

email metric

01 Definition

Bounce Rate (Email) meaning: The share of sent emails that bounced, expressed as a percentage.

Email bounce rate is the percentage of sent messages that were returned undelivered, calculated as bounces divided by emails sent, times 100. It combines hard and soft bounces. A rising bounce rate signals list quality problems and can trigger worse deliverability, so most senders aim to keep it below about two percent.

Why it matters

How Bounce Rate (Email) fits the work

Bounce rate is an early warning of list decay and reputation risk, since mailbox providers watch how often you send to addresses that reject your mail.

In context

With 150 bounces from 10,000 emails sent, the campaign's bounce rate was 1.5 percent, within a healthy range.

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Practical note

Note this is a different metric from the website bounce rate in analytics; here it measures undelivered email, not visitors who leave a page after one view.