A catch-all e-mailbox is one that gathers all the emails sent to nonexistent email addresses. For instance, if your email address is email@example.com, but someone misspells it and sends an email message to firstname.lastname@example.org, it will still be received in the catch-all mailbox that you have set up. Just one mailbox per domain can have this feature activated and in this way you’ll never miss messages because the other side has an outdated email address or has made a typographical error. The disadvantage of using a catch-all mailbox is that you may start receiving lots of spam email messages, but this issue can be rectified by using an anti-spam filtering solution. It is also vital to know that a mailbox with an active catch-all functionality cannot forward inbound email messages to a third-party mailbox.