Definition
The percentage of emails that could not be delivered. High bounce rates damage sender reputation.
Glossary
Bounce rate
The percentage of emails that could not be delivered. High bounce rates damage sender reputation.
Related terms
- Hard bounceA permanent delivery failure, usually because the address does not exist. Hard-bounced addresses should be suppressed immediately.
- Soft bounceA temporary delivery failure, such as a full mailbox or a server problem. Repeated soft bounces are treated like hard bounces.
- List hygieneThe ongoing practice of removing invalid, inactive and risky addresses so your list stays deliverable.
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