A catch-all email mailbox is one that gathers all the emails sent to non-existent addresses. For instance, if your address is info@domain.com, but someone misspells 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. Just one mailbox per domain can have this feature enabled and in this way you will never miss emails because the other party has an obsolete address or has made a typographical error. The disadvantage of setting up a catch-all mailbox is that you may start receiving a lot of junk email messages, but this issue can be resolved by using an anti-spam filtering solution. It’s also important to know that a mailbox with an activated catch-all functionality cannot forward inbound messages to a 3rd-party mailbox.