A Hard Bounce is a status indicating that there is a permanent reason an email cannot be delivered to a specific subscriber.
Hard bounced email addresses are automatically archived inside your Email Marketing Email List and transferred to the Bounced category.
The most common reasons why a hard bounce might occur are:
- the recipient misspelled their email address while subscribing
- the recipient has deleted or changed their email address, or provided you with a false address
- the recipient's mail server has blocked your server