-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! First of all spamassassin has to learn what you consider as spam and what you consider as ham (no spam). If you don't teach both you may get false positives. I use cyrus + postfix + cyrus + amavisd-new + serverbased imap-filter-rules for my users - but this setup may be a littlebit too complex ;). In short: One rules sorts spam into spam-folder of the user's imap-folder (it will be deleted manually in case the spam-filter recognises too much as spam). I made a spamassassin imap-folder for each user and a cron-script learnes the bayes for each user every day from this folder. Here is my script for postfix/cyrus/spamassassin: [Begin Script] #!/bin/bash # # Spamassassin Cron-Script # # Target: Learn spam and add to spam-db for all users with their own spam. # # learn spam and clear spamassassin-folder ... # /usr/bin/sa-learn --spam /var/spool/imap/user/*/Spamassassin/*. su - cyrus -c '/usr/lib/cyrus/bin/ipurge -i -b 1 user.*.Spamassassin' # # find users ... # LOCUSERS=`find /home -group users -maxdepth 1` for LOCALUSERS in $LOCUSERS; do LUSERS=$LUSERS" "${LOCALUSERS:6} done # # Copy global config for all users # for namen in $LUSERS; do test -d "/home/$namen/.spamassassin" || { mkdir /home/$namen/.spamassassin; } cp -R /root/.spamassassin/bayes* /home/$namen/.spamassassin chown -R $namen:users /home/$namen/.spamassassin done #echo 'Starte Postfix neu:' #/etc/init.d/postfix restart echo 'User-Spamdb updated!' [End Script] If you don't use imap you can use a pop3-account and move your spam as admin to another users mailbox (maybe user = spam) and execute the following (you have to change the folder at the end to your settings!!!): #learn spam: /usr/bin/sa-learn --spam /var/spool/mail/spam #learn ham: /usr/bin/sa-learn --ham /var/spool/mail/mailbox-with-ham-and-no-spam This mailbox should not include ham otherwise you get false positives! If you want to create a config-file with most options for spamassassin you may use this form: http://www.yrex.com/spam/spamconfig.php Otherwise you should examine the manpages and search a lot with google. Spamfiltering in general based on postifx: Make acl's to filter mails (postfix will reject this mails): - - use amavisd-new to scan for viruses (f-prot is free for use for private users under linux) - - disable notification of virus in amavis and disable any other notifications in spamassassin (postfix should ony rejet this and don't give any answers) - - reject executable extensions (I do this via amavid-new) -> good bye virus - - use a rbl-server for blocking announced spam-providing servers - - non-existing url's (dns-check) - - Implement spamassassin or any other spam-filter. In general: Don't answer to any spam of any kind. With this policy I get about max. 3 spam-mails per day (before a lot more). After learning ham I don't get much lase positives (now exactly 0%). Bet way to learn ham is to learn all your mails from your mailbox containing no spam! Reguards Philippe - -- Diese Nachricht ist digital signiert und enthält weder Siegel noch Unterschrift! Die unaufgeforderte Zusendung einer Werbemail an Privatleute verstößt gegen §1 UWG und 823 I BGB (Beschluß des LG Berlin vom 2.8.1998 Az: 16 O 201/98). Jede kommerzielle Nutzung der übermittelten persönlichen Daten sowie deren Weitergabe an Dritte ist ausdrücklich untersagt! - -- Diese Nachricht ist digital signiert und enthält weder Siegel noch Unterschrift! Die unaufgeforderte Zusendung einer Werbemail an Privatleute verstößt gegen §1 UWG und 823 I BGB (Beschluß des LG Berlin vom 2.8.1998 Az: 16 O 201/98). Jede kommerzielle Nutzung der übermittelten persönlichen Daten sowie deren Weitergabe an Dritte ist ausdrücklich untersagt! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iQD1AwUBQnzJ20Ng1DRVIGjBAQIPnwb/bSLKhjDTTzg1tdEjCdZltkO5V2IqVmFF hvYxqnv5qWSpsC1oAko84wJ0bXTqjwPz8WPqwU0Qjh1XKn91OwAK8szsbWlzcOEy Mgv+Em8dSR057ttv5KiGYzllbI5kFCpb1eYoBaTqxPk0zGuxt08a/JVrmRUAPwIe 6R6uqrnnShSp8XhY474sbFa2hzczLEiP77dQlQ+MsGxASb2l2HKNAitJNP78bXvq W2UMxdSOAdiIqKQwHhmNyAcd+6VInAHRb5qYjOQvtvX6jV597s8eo3+5MKI8MzbW 8SHsss9MVvA= =nWE1 -----END PGP SIGNATURE-----