A catch-all email mailbox is one that gathers all the email messages sent to nonexistent addresses. For instance, if your email address is firstname.lastname@example.org, but someone miswrites it and sends an email to email@example.com, it will still be received in the catch-all mailbox that you have created. Only one mailbox per domain can have this feature activated and thus you’ll never miss messages because the other side has an outdated address or has made a spelling error. The disadvantage of having a catch-all mailbox is that you may begin receiving plenty of unsolicited bulk emails, but this issue can be resolved by using anti-spam protection software. It’s also crucial to remember that a mailbox with an enabled catch-all functionality cannot redirect incoming email messages to a third-party mailbox.