A catch-all e-mailbox is one that collects all the email messages sent to inactive addresses. For example, if your address is email@example.com, but someone mistypes it and sends an email to firstname.lastname@example.org, it will still be received in the catch-all mailbox that you have set up. Only one mailbox per domain name can have this feature activated and thus you will never miss emails because the other side has an obsolete email address or has made a typo. The disadvantage of setting up a catch-all mailbox is that you may begin receiving lots of unsolicited bulk email messages, but this issue can be rectified using an anti-spam filtering solution. It is also crucial to know that a mailbox with an activated catch-all feature cannot redirect incoming messages to a third-party address.