[Greylist-users] network-enabled milter?

[Evan Harris]

Thanks for the suggestion.  Check out the latest checkin to CVS.

Evan


On Fri, 11 Jul 2003, Deke Clinger wrote:

> Greetings,
>
> I'm trying out greylisting here starting today and wanted to offer a
> suggestion that might be helpful at some sites. Currently relaydelay.pl uses
> the Sendmail::Milter auto_setconn call to configure the milter listener.
> Unfortunately this method doesn't support remote milters that are accessed
> over the network.
>
> http://search.cpan.org/author/CYING/Sendmail-Milter-0.18/Milter.pm says:
>
>
> auto_setconn NAME [, SENDMAIL_CF_FILENAME]
>
> This function automatically sets the connection information by parsing the
> sendmail .cf file for the appropriate X line containing the connection
> information for the NAME mail filter and calling setconn if it was
> successful. It is provided as a helper function and does not exist in the
> current Milter library.
>
> Note: This connection information isn't useful for implementing a Milter that
> resides on a machine that is remote to the machine running sendmail. In those
> cases, you will want to set the connection information manually with setconn.
>
>
> I've defined the $conn variable at the top of relaydelay.pl, commented the
> call to auto_setconn and changed the usage accordingly (diff at the end of
> this message). This change allows relaydelay to run configured for network use
> (inet:3005 at warlock.qualcomm.com). It shouldn't break local sockets, either. Is
> anyone else doing something like this?
>
> So far (5-odd hours in, 47k+ rows in relaytofrom) everything appears to be
> working properly. I've tested a single message (same triplet) against two mail
> servers talking to the one milter and got the results I expected. I'm going to
> post another message with some errors I'm seeing (with $verbose and -w on) but
> so far everything looks pretty solid.
>
> Thanks for reading.
>
> Deke Clinger
> Postmaster
> Qualcomm Incorporated
> San Diego, CA
>
>
> ------------------------------diff starts here------------------------------
>
> 1c1
> < #!/usr/bin/perl
> ---
> > #!/prj/postmaster/greylist/ActivePerl-5.8/bin/perl -w
> 48d47
> < my $config_file = "/etc/mail/relaydelay.conf";
> 49a49
> > my $config_file = "/prj/postmaster/greylist/relaydelay.conf";
> 50a51
> >
> 57c58
> < my $verbose = 1;
> ---
> > my $verbose = 0;
> 58a60,62
> > # Connection information
> > my $conn="inet:3005\@warlock.qualcomm.com";
> >
> 844,847c848,851
> <   if (scalar(@ARGV) < 2) {
> <     print "Usage: perl $0 <name_of_filter> <path_to_sendmail.cf>\n";
> <     exit;
> <   }
> ---
> >     if (scalar(@ARGV) < 1) {
> > 	print "Usage: perl $0 <name_of_filter>\n";
> > 	exit;
> >     }
> 849c853
> <   my $conn = Sendmail::Milter::auto_getconn($ARGV[0], $ARGV[1]);
> ---
> >     print "Connection: $conn\n";
> 851,852d854
> <   print "Found connection info for '$ARGV[0]': $conn\n";
> <
> 867,869c869,891
> <   if (not Sendmail::Milter::auto_setconn($ARGV[0], $ARGV[1])) {
> <     print "Failed to detect connection information.\n";
> <     exit;
> ---
> > ## from http://search.cpan.org/author/CYING/Sendmail-Milter-0.18/Milter.pm:
> > ##
> > ## auto_setconn NAME [, SENDMAIL_CF_FILENAME]
> > ##
> > ## This function automatically sets the connection information by parsing
> > ## the sendmail .cf file for the appropriate X line containing the
> > ## connection information for the NAME mail filter and calling setconn if
> > ## it was successful. It is provided as a helper function and does not
> > ## exist in the current Milter library.
> > ##
> > ## Note: This connection information isn't useful for implementing a
> > ## Milter that resides on a machine that is remote to the machine running
> > ## sendmail. In those cases, you will want to set the connection
> > ## information manually with setconn.
> >
> > #   if (not Sendmail::Milter::auto_setconn($ARGV[0], $ARGV[1])) {
> > #     print "Failed to detect connection information.\n";
> > #     exit;
> > #   }
> >
> >   if (not Sendmail::Milter::setconn("$conn")) {
> >       print "Failed to set up connection: $?\n";
> >       exit;
>
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