/etc/shells
.
For example, if a .forward file contained the following lines:
nobody@FreeBSD.org
"|/usr/bin/vacation nobody"
Mail would be forwarded to
<nobody@FreeBSD.org>
and to the program
/usr/bin/vacation
with the single argument
nobody.
If a local user address is prefixed with a backslash character, mail is delivered directly to the user's mail spool file, bypassing further redirection.
For example, if user chris had a .forward file containing the following lines:
chris@otherhost
\chris
One copy of mail would be forwarded to chris@otherhost and another copy would be retained as mail for local user chris.
$HOME/.forward