Bounce rate measures undeliverable emails. Hard bounces are permanent failures (invalid address, domain doesn't exist). Soft bounces are temporary (full mailbox, server down). Keep bounce rate under 2% to maintain good sender reputation. MisarMail automatically removes hard bounces and retries soft bounces up to 3 times.

Related Terms

Email Deliverability

The percentage of emails that reach the recipient's inbox rather than the spam folder or being bounced.

List Hygiene

The practice of regularly cleaning your email list by removing invalid, inactive, and unengaged subscribers.

Sender Reputation

A score assigned by mailbox providers based on your sending patterns, determining whether your emails reach the inbox.

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