A catch-all e-mailbox is one that captures all the email messages sent to inactive addresses. For example, if your 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 created. Just one mailbox per domain can have this feature enabled and thus you will never miss emails because the other party has an obsolete email address or has made a typo. The drawback of creating a catch-all mailbox is that you may start receiving plenty of junk email messages, but this issue can be solved by using an anti-spam filtering solution. It’s also vital to keep in mind that a mailbox with an activated catch-all feature cannot forward inbound email messages to a third-party email address.