Catch-all mailbox | Article about catch-all mailbox by The Free Dictionary
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catch-all mailboxA mailbox that can be assigned to incoming email messages that have invalid or non-configured recipient names. A catch-all mailbox allows new email addresses to be published without setting up specific email accounts. For example, as long as sales and feedback were not email accounts, firstname.lastname@example.org and email@example.com would be directed automatically to the catch-all mailbox. See mailbox.