[Mimedefang] Thought I should share this - Reduced Junk traffic with md_check_against_smtp_server

[Larry Starr]

Having received requests, off list, for my solution, I'm posting it for 
whoever want's it
Note:  
1.   "<my internal server>" - should be the name of the machine that your are 
relaying for i.e. "internalserver.mydomain.com"
2.   The RE for setting $relay "mshould be your mail domain "mydom.com
      should, of course be your domain "\bmydomain\.com\b"
3.    "myfqdn"  should be the name of the server running mimedefang
	i.e "mail.mydomain.com"

Hope this helps someone.

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

        my $relay = undef;
        $relay = "<my internal server>" if ($recip =~ /\bmydom\.com\b/);
        if ($relay)
        {
                return md_check_against_smtp_server($sender, $recip,
                        "myfqdn", $relay);
        }

        return('CONTINUE', "OK");  # accept recipient if dont find relay
  }

On Friday 11 March 2005 12:14, Larry Starr wrote:
> I am running a configuration with MD - 2.37, SA - 2.63 on my Web-facing
> RedHat mailserver.  There are no local users on that mailserver.  All
> incoming mail is passed to a local mail server for handling.
>
> Over the past month or so the volume of Junk mail addressed to bogus users,
> and bounces, with from addresses for bogus users has skyrocketed.
>
> snip!

-- 
Larry G. Starr - larrys at fullcompass.com or starrl at globaldialog.com
Software Engineer: Full Compass Systems LTD.
Phone: 608-831-7330 x 1347  FAX: 608-831-6330
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