[Mimedefang] Routine to check validity of user on remote box

[Kevin A. McGrail]

Keith:

If your destination box gives an error for unknown users, you can enable 
filter recipient and use MD's md_check_against_smtp_server routine.  On my 
boxes, I edit /etc/sysconfig/mimedefang to enable filter recipient and I 
have routines like this in my filter:

sub filter_recipient {
  my($recip, $sender, $ip, $host, $first, $helo, $rcpt_mailer, $rcpt_host, 
$rcpt_addr) = @_;

  my($answer, $explanation);

  if ($recip =~ /@domaintocheck.com>?$/i) {
    ($answer, $explanation) =  md_check_against_smtp_server($sender, $recip, 
"intel1.peregrinehw.com", "mail.domaintocheck.com");
    if ($answer eq 'TEMPFAIL') { # This let's me be a backup MX if the 
primary server is down.
      $answer = 'CONTINUE';
    }
    return ($answer, $explanation);
  }

  return ('CONTINUE', "ok");
}
----- Original Message ----- 
From: "Keith Patton" <kpatton at dallas.photronics.com>
To: <mimedefang at lists.roaringpenguin.com>
Sent: Thursday, March 24, 2005 11:54 AM
Subject: [Mimedefang] Routine to check validity of user on remote box


> All,
>
> Forgive me,  I know this was posted once and I have yet to find the prior 
> posting..
>
> A filter routine was posted for mimedefang( used as a relay gateway )  to 
> check to see if the recipient existed on the destination box.
>
> Can anyone point me to were that was posted?
>
> thanks,
> Keith
>
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