A catch-all e-mailbox is one that collects all the emails sent to non-existent email addresses. For instance, if your address is info@domain.com, but somebody mistypes it and sends an email message to inof@domain.com, it will still be received in the catch-all mailbox that you have set up. Only one single mailbox per domain name can have this feature activated and thus you’ll never miss messages because the other side has an obsolete address or has made a typo. The disadvantage of using a catch-all mailbox is that you may start receiving plenty of spam, but this problem can be fixed by using anti-spam protection software. It is also essential to know that a mailbox with an enabled catch-all functionality cannot redirect incoming emails to a 3rd-party email address.