spamassassin:stopping_spam
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Table of Contents
SpamAssassin - Stopping Spam
Install Mail::Audit
SpamAssassin needs the Mail::Audit module for Perl. Install Mail::Audit (via CPAN)
#perl -MCPAN -e shell cpan> install Mail::Audit cpan> quit
Install Spam Assassin Modules
Install SpamAssassin from CPAN, which will also install all other required modules too.
# perl -MCPAN -e shell cpan> install Mail::SpamAssassin
It maybe will ask you for some needed modules that aren't installed yet - Answer yes and Perl will fetch and install them, too.
cpan> quit
Run the recommended tests
First look if the install succeded by running:
# which spamassassin /usr/local/bin/spamassassin
If you don't get a right answer something failed… or your PATH-variable isn't set right…
Now lets scan a no spam mail with
# spamassassin -t <sample-nonspam.txt |less
Look for a line like this in the output:
X-Spam-Status: No, hits=0 required=5 tests=
Okay fine - now try a bad spam message:
# spamassassin -t <sample-spam.txt |less
which should produce some lines like that:
X-Spam-Status: Yes, hits=12 required=5 tests=NO_REAL_NAME,UNDISC_RECIPS,INVALID_DATE,MSGID_HAS_NO_AT,REMOVE_SUBJ,RCVD_IN_OSIRUSOFT_COM X-Spam-Flag: YES
Okay everything seems working… that was the easy part
#!/usr/bin/perl # This is an small wrapper script around Mail::SpamAssassin for the use # with the exim MTA. # Modified to eliminate the buggy Mail::Audit use. # This modification also eliminates the need to re-submit the message # to Exim for delivery to the mail spool. Requires localuser director # to use the spamcheck transport so it knows where to append to. # It is released under the Terms of GNU General Public License (GPL) so # use at your own risk! use Mail::SpamAssassin; use Mail::SpamAssassin::NoMailAudit; $savespam = 1; #1/0 should spam be saved centrally? $spamfile = '/var/mail/spam'; #If you said 1 above - where to put #that nasty spam? Be sure this mailbox #is writable by the user who runs this #script (e.g. mail) #These are given as command line arguments by exim: $sender = shift(@ARGV); $sender = '<>' if $sender eq ''; $recpt = ''; while (@ARGV){ $recpt = $recpt.' '.shift(@ARGV); } ####### Main script ########################################################### $mail = Mail::SpamAssassin::NoMailAudit->new(); $spamtest = Mail::SpamAssassin->new(); $status = $spamtest->check ($mail); #Add the X-Spam Headers: $status->rewrite_mail (); #Auto Report to Vipul's Razor: $status->handle_auto_report (); if ($status->is_spam ()) { if ($savespam) { $mail->accept($spamfile); # Deliver to spamfile } else { $mail->accept(); # Deliver to user's mailbox } } else { $mail->accept(); # to default incoming mailbox }
References
spamassassin/stopping_spam.1478045356.txt.gz · Last modified: 2020/07/15 09:30 (external edit)