How to call custom filter script?

[Carsten Wolters]

Hi all!

I just got postfix + amavisd-new running. Now I want to call a script
for custom content filtering an each email processed by amavisd.

How can I do this? Where can I hook the script into the amavids
process?

Thank you
Carsten

[patrice...@gmail.com]

Hello,

I wonder if there's an answer to this question.
I recently started using Amavisd-new and looking for creating custom hook.

If anyone could help me getting started with custom hook, I would be very grateful.

Thank you,
Sam

[patrice...@gmail.com]

Hi,

I found the way, thanks to the documentation and trial and error method.

1) Created a file /etc/amavis/conf.d/my-custom-hook.conf:
===========================================================
package Amavis::Custom;
use strict;
use warnings;
no warnings qw(uninitialized redefine);
use DBI qw(:sql_types);
use DBD::mysql;
BEGIN {
import Amavis::Conf qw(:platform :confvars c cr ca $myhostname);
import Amavis::Util qw(do_log untaint safe_encode safe_decode);
import Amavis::rfc2821_2822_Tools;
import Amavis::Notify qw(build_mime_entity);
}

sub new {
my($class,$conn,$msginfo) = @_;
my($self) = bless {}, $class;
my($conn_h) = Amavis::Out::SQL::Connection->new(
['DBI:mysql:database=mydb;host=127.0.0.1', 'user', 'password'] );
$self->{'conn_h'} = $conn_h;
$self; # returning an object activates further callbacks,
# returning undef disables them
}

sub before_send {
my($self,$conn,$msginfo) = @_;
# $self ... whatever was returned by new()
# $conn ... object with information about a SMTP connection
# $msginfo ... object with info. about a mail message being processed

my($ll) = 2; # log level (0 is the most important level, 1, 2,... 5 less so)
do_log($ll,"CUSTOM: new message");

my($sender) = $msginfo->sender; # envelope sender address, e.g. 'u...@e.com'
do_log($ll,"CUSTOM: Envelope sender: <%s>", $sender);
}

1;
===========================================================

2) Added the following in the /etc/amavis/conf.d/50-user :

include_config_files('/etc/amavis/conf.d/my-custom-hook.conf');

3) Ensured log level set to 2 (according to the code above) in the /etc/amavis/conf.d/50-user :

$log_level = 2;

4) Restarted Amavis:

sudo /etc/init.d/amavis restart

I verified it by sending mail to the MTA (Postfix) and checking the entry in /var/log/mail.log

Hope it helps!

Regards,
Sam