A catch-all e-mailbox is one that captures all the email messages sent to non-existent email addresses. For example, 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 created. Just one single mailbox per domain can have this feature enabled and thus you’ll never miss messages because the other party has an outdated address or has made a spelling error. The downside of having a catch-all mailbox is that you may start receiving plenty of junk emails, but this issue can be rectified by using anti-spam protection software. It’s also vital to bear in mind that a mailbox with an active catch-all feature cannot redirect inbound messages to a 3rd-party email address.