[Mimedefang] A small question

[Ron Hall]

	Perhaps I am missing something in the overall configuration
	but below is my mimedefang-filter, very simple.

	On one configuration is discard mail on
	another does a reject with 4.7.1. No doubt I'm missing
	something in the mix, but could someclue me in as to what
	'zackly.

	----- cut here ------

# -*- Perl -*-
#***********************************************************************
#
# mimedefang-filter
#
#***********************************************************************

#***********************************************************************
# Set administrator's e-mail address here.  The administrator receives
# quarantine messages and is listed as the contact for site-wide
# MIMEDefang policy.  A good example would be
'defang-admin at mydomain.com'
#***********************************************************************
$AdminAddress = 'postmaster at mcgill.ca';
$AdminName = "MIMEDefang Administrator's Full Name";

#***********************************************************************
# Set the e-mail address from which MIMEDefang quarantine warnings and
# user notifications appear to come.  A good example would be
# 'mimedefang at mydomain.com'.  Make sure to have an alias for this
# address if you want replies to it to work.
#***********************************************************************
$DaemonAddress = 'mimedefang at localhost';

#***********************************************************************
# If you set $AddWarningsInline to 1, then MIMEDefang tries *very*
hard
# to add warnings directly in the message body (text or html) rather
# than adding a separate "WARNING.TXT" MIME part.  If the message
# has no text or html part, then a separate MIME part is still used.
#***********************************************************************
$AddWarningsInline = 0;

#***********************************************************************
# To enable syslogging of virus and spam activity, add the following
# to the filter:
# md_graphdefang_log_enable();
# You may optionally provide a syslogging facility by passing an
# argument such as:  md_graphdefang_log_enable('local4');  If you do
this, be
# sure to setup the new syslog facility (probably in
/etc/syslog.conf).
# An optional second argument causes a line of output to be produced
# for each recipient (if it is 1), or only a single summary line
# for all recipients (if it is 0.)  The default is 1.
# Comment this line out to disable logging.
#***********************************************************************
md_graphdefang_log_enable('mail', 1);


#***********************************************************************
# Uncomment this to block messages with more than 50 parts.  This will
# *NOT* work unless you're using Roaring Penguin's patched version
# of MIME tools, version MIME-tools-5.411a-RP-Patched-02 or later.
#
# WARNING: DO NOT SET THIS VARIABLE unless you're using at least
# MIME-tools-5.411a-RP-Patched-02; otherwise, your filter will fail.
#***********************************************************************
# $MaxMIMEParts = 50;

#***********************************************************************
# Set various stupid things your mail client does below.
#***********************************************************************

# Set the next one if your mail client cannot handle nested multipart
# messages.  DO NOT set this lightly; it will cause action_add_part to
# work rather strangely.  Leave it at zero, even for MS Outlook,
unless
# you have serious problems.
$Stupidity{"flatten"} = 0;

# Set the next one if your mail client cannot handle multiple "inline"
# parts.

#***********************************************************************
# %PROCEDURE: filter
# %ARGUMENTS:
#  entity -- a Mime::Entity object (see MIME-tools documentation for
details)
#  fname -- the suggested filename, taken from the MIME
Content-Disposition:
#           header.  If no filename was suggested, then fname is ""
#  ext -- the file extension (everything from the last period in the
name
#         to the end of the name, including the period.)
#  type -- the MIME type, taken from the Content-Type: header.
#
#  NOTE: There are two likely and one unlikely place for a filename to
#  appear in a MIME message:  In Content-Disposition: filename, in
#  Content-Type: name, and in Content-Description.  If you are
paranoid,
#  you will use the re_match and re_match_ext functions, which return
true
#  if ANY of these possibilities match.  re_match checks the whole
name;
#  re_match_ext checks the extension.  See the sample filter below for
usage.
# %RETURNS:
#  Nothing
# %DESCRIPTION:
#  This function is called once for each part of a MIME message.
#  There are many action_*() routines which can decide the fate
#  of each part; see the mimedefang-filter man page.
sub filter ($$$$)
{
        my($entity, $fname, $ext, $type) = @_;
        my $found = 0;

#       return if message_rejected(); # Avoid unnecessary work

        # Block virus warning message
        if ($type =~ /^text/i)
        {
                if (defined $entity->bodyhandle)
                {
                        if ( $io = $entity->bodyhandle->open("r"))
                        {
                                while (defined($_ = $io->getline))
                                {
                             if (/McGill NCS has removed the virus from your email/)
                                        {
                                                $found = 1;
                                                last;
                                        }
                                }
                                $io->close;
                        }
                }
                return action_discard() if $found == 1;
        }
        return action_accept();
}

# DO NOT delete the next line, or Perl will complain.
1;



	HTH

	As Always

	r