Per user configurable spam killer with postfix and SpamAssassin?

Per user configurable spam killer with Postfix and SpamAssassin™ Mikko Pikarinen <goblet@goblet.net>, October 2003 Preface Software The configuration of Postfix The configuration of Procmail The brain of the system About the performance Preface We have a mail server which has a little more than 2000 virtual users and some quite active mailing lists run by Mailman. The main idea of the server is to serve members of an association so that the people can have address@ourdomain and the mail arriving to those addresses is forwarded to their real mail addresses. The spam percentage of all mail coming to our server is shocking. Incoming count is about 40000-50000 emails per week and only less than 10000 of them is not spam. About 15000-25000 is blocked by ordb, dsbl, rfc-ignorant.org and our own access lists. The rest get through and are checked by SpamAssassin. Less than one third of them are tagged as not spam. Some of the people wanted their all mail, even spam, to be forwarded to them and just to be tagged by SpamAssassin. Some of them wanted everything even smelling spam to be totally killed before going to fill their real mailboxes. Somebody wanted only ...