Catch-All Mail Box
The catch-all mailbox allows you to receive email sent to your domain that might be misaddressed or misspelled (for example, bob@ instead of email@example.com) - even mail sent to email addresses at your domain that don't exist - rather than having the email "bounced," or returned to the sender. (The catch-all feature will not affect the delivery of properly addressed email.)
To use the catch-all feature, you must designate a mailbox into which misaddressed and unspecified email will be deposited. You must turn on the catch-all feature to begin using it. With a single email address, Custom Mailbox users must choose their default email address as the catch-all mailbox for that email account. Business Mail administrators may designate any mailbox as the catch-all, and may change the selected catch-all anytime.