Hard bounce is an email that is permanently undeliverable due to reasons such as an invalid email address or a non-existent domain. Hard bounces negatively impact email deliverability and sender reputation.
For example, sending an email to john@abccom instead of john@abc.com would result in a hard bounce because the domain is incorrect or doesn’t exist.
Marketers monitor bounce rates closely to maintain a clean email list and avoid spam filters. Regularly removing invalid addresses and verifying contact information ensures campaigns reach their intended audience and improve overall email performance.
