The topic is virtual users, not necessarily users with a login
shell and with a home directory.

        Wietse

Michael Ghens:
> I take a simpler route on this. I still use the bsd/linux vaction program.
> When I edit the .vacation.msg file and add a From: header at the top of
> the file.
>
> Example
>
> From: Michael Ghens <michaelspconnect.com>
> Subject: Away from mail
>
> Mail text
>
>
> It seems to work.
>
> On Wed, 4 Apr 2001, Wietse Venema wrote:
>
> > Date: Wed, 4 Apr 2001 15:44:18 -0400 (EDT)
> > From: Wietse Venema <wietseporcupine.org>
> > To: Postfix users <postfix-userspostfix.org>
> > Subject: Re: virtual autoresponder (was: deliver to file in virtual map?)
> >
> > This was answered a while ago in the list. It needs a FAQ entry.
> > I would appreciate it if someone could develop the recipe below
> > into a working example.
> >
> > Wietse
> >
> > When a user goes on vacation, add usernameautoreply.domain.com
> > to their address forwarding, for example:
> >
> > /etc/postfix/main.cf:
> > virtual_maps = hash:/etc/postfix/virtual
> >
> > /etc/postfix/virtual:
> > userdomain.com userautoreply.domain.com userdomain.com
> >
> > This will send the mail to the user as usual (virtual domain or
> > not), but will also send a copy of every message to an identical
> > address in the autoreply subdomain.
> >
> > To process the autoreplies, use a pipe-driven script that processes
> > recipients one at a time:
> >
> > /etc/postfix/main.cf:
> > transport_maps = hash:/etc/postfix/transport
> > autoreply_destination_recipient_limit = 1
> >
> > /etc/postfix/transport:
> > autoreply.domain.com autoreply:
> >
> > /etc/postfix/master.cf:
> > autoreply .... pipe user=foo argv=/some/where/autoreply $sender $user
> >
> > The autoreply script checks the sender address and the message headers.
> > The script should NEVER send an autoreply when:
> >
> > sender is owner-whatever or whatever-request (mailing list mail)
> > user is not listed in the To: or Cc: headers (mailing list mail)
> >
> > This is to prevent the autoresponder from replying to mailing lists.
> >
> > The script should set the envelope address to the null string, in
> > order to prevent autoreply mailer loops.
> >
> > Be careful: the autoreply script processes data from an untrusted
> > source. Don't let it near a shell. For example, use PERL code like:
> >
> > $SENDMAIL = "/usr/sbin/sendmail"
> >
> > open(MAIL, "|$SENDMAIL -f '' -t") || die "Cannot execute $SENDMAIL: $!\n";
> > print MAIL <<EOF
> > From: MAILER-DAEMON (Automatic reply service)
> > To: $sender
> > Subject: $user is away from the mail
> >
> > Some other text here.
> > EOF
> > close MAIL || die "$SENDMAIL failed: $!\n";
> > exit 0;
> >
> > -
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> >
>
>
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