A catch-all e-mailbox is one that gathers all the messages sent to non-existent email addresses. For instance, if your address is email@example.com, but someone miswrites it and sends a message to firstname.lastname@example.org, it will still be received in the catch-all mailbox that you have created. Only one mailbox per domain name can have this feature activated and thus you’ll never miss emails because the other party has an outdated email address or has made a mistake. The drawback of using a catch-all mailbox is that you may start receiving plenty of junk emails, but this problem can be fixed using an anti-spam filtering solution. It’s also essential to keep in mind that a mailbox with an activated catch-all feature cannot forward inbound emails to a third-party address.