On Sat, 2009-02-28, 059, Girish Kulkarni wrote: > How is your experience with the spam control tools already available > (SpamAssassin, SpanBouncer, Bogofilter)? Which one is the most > favoured? Is Gmail indeed the best option for controlling spam? I pull all mail from Gmail, including spam, using IMAP and getmail4. Then I deliver it to Postfix running locally which looks at ~/.forward and sees "| spamc | procmail". So spamc (spamassassin) adds spam headers and procmail (I plan to switch to maildrop eventually) does some filtering (no spam filtering there). I have left all the important spamassassin settings (like required_score) at the defaults. I am inclined to measure spam-filtering success by the number of false-positives (heh, the ultimate spam filter filters nothing...!). If I remember correctly, Gmail has had at 3-8 false positive while SpamAssassin has had 1-2 false positives. If I take out mailing list messages, it drops to 1-2 and 1 respectively. I suppose that more mail has gone through SpamAssassin now than did Gmail when I was using it instead. I do get a few false-negatives daily but not more than maybe 6; I don't remember how many with Gmail but I know I did get some. Of course it is relevent how much mail I get in a day: I am subscribed to several mailing lists with debian-user being the highest traffic.
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