A catch-all email mailbox is one that gathers all the email messages sent to invalid email addresses. For example, if your address is info@domain.com, but someone mistypes it and sends an email to inof@domain.com, it will still be received in the catch-all mailbox that you have created. Just one mailbox per domain can have this feature activated and in this way you’ll never miss messages because the other party has an outdated address or has made a spelling mistake. The drawback of using a catch-all mailbox is that you may begin receiving lots of junk messages, but this problem can be rectified by using an anti-spam protection solution. It is also essential to remember that a mailbox with an activated catch-all feature cannot redirect incoming messages to a third-party email address.