From = to

Alan Fiebig mailscanner at ELKNET.NET
Mon Jul 21 14:11:58 IST 2003

Excellent! Thankyou!

>On Saturday 19 July 2003 10:45 pm, Antony Stone wrote:
>> Is there any mileage in creating yourself a SpamAssassin rule which picks
>> up on From=To, and assigning it a high enough score that it reaches your
>> MailScanner High Spam Score, which you can then delete?
>This seemed like a neat opportunity to write my first SpamAssassin rule, so I
>thought I'd give it a try.
>I came up with this:
>In the file /usr/lib/perl5/site_perl/Mail/SpamAssassin/ there is
>already a function called check_for_from_to_same (which is badly named,
>because it explicitly does *not* match the from and to addresses being
>identical - only if they are 'similar'....)
>Using this as a template, I created a new function:
>sub check_for_from_to_identical {
>  my ($self) = @_;
>  my $addr_from = $self->get('From:addr');
>  my $addr_to = $self->get('To:addr');
>  $addr_from =~ s/\s+//g;
>  $addr_to =~ s/\s+//g;
>  return 1 if ($addr_from eq $addr_to);
>  return 0;
>I then added three lines to /opt/MailScanner/etc/spam.assassin.prefs.conf:
>header FROM_AND_TO_IDENTICAL eval:check_for_from_to_identical()
>describe FROM_AND_TO_IDENTICAL From and To are the same address
>The only thing which bothers me slightly about this idea is that I think I
>see some emails from genuine mailing lists which set the from and to
>addresses to the same thing - I disapprove of that, but it would lead to some
>false positivies if the mailing lists aren't whitelisted....
>Anyway, have fun,
>It is also possible that putting the birds in a laboratory setting
>inadvertently renders them relatively incompetent.
> - Daniel C Dennett

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