Definition - What does Hard Bounce mean?
A hard bounce is an email message that is returned or bounced back to a sender due to a recipient's invalid email address and/or domain host details. It is a type of bounced email message that is visible only when a sender provides incorrect or unknown email credentials.
Techopedia explains Hard Bounce
- A sender incorrectly types a user’s email address.
- A recipient's email address does not exist on the domain or email server.
- The recipient’s domain does not exist at all (firstname.lastname@example.org).
A hard bounce also occurs when an email message has been rejected by the recipient's email server for privacy or security reasons (email/email domain/recipient tagged as spam/spammer).
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