iftocc reads a mail message from its standard input.
It exits 0 if
$RECIPIENT is listed in a
100 if not.
Addresses are compared without regard to case.
If you list some
iftocc will use them in place of
$RECIPIENT. It exits 100 if
none of them are listed in
For example, with qmail 1.03 and above,
you can put
|bouncesaying I do not accept Bcc. except iftocc
.qmail file to reject blind carbon copies
(including messages from mailing lists),
|condredirect me-blind except iftocc
to forward all blind carbon copies to me-blind.
WARNING: If you create a
.qmail file to invoke
iftocc, make sure to add a line
specifying delivery to your normal mailbox.