(verb) To send (a copy of) an electronIC mail message that you have received on to one or more other addressees. Most e-mail systems can be configured to do this automatICally to all or certain messages, e.g. Unixsendmail looks for a ".forward" file in the recipient' s home directory. A mailing list server (or "mail exploder") is designed to forward messages automatICally to lists of people. Unix manual page: aliases(5). (2000-03-22)