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Hi! |
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On Sun, Sep 28, 2008 at 04:07:49PM -0500, Homer Parker wrote: |
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> In my case it's a usable Inbox vs 2500-3000 spams a week clogging it |
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> up.. Spamassassin isn't a fire and forget piece of software.. You need |
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> to train bayes, keep rules updated, write rules, etc... I hear |
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> bogofilter is decent as well, might look into it.. But there's no way I |
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> could handle using email without filtering to a quarantine.. |
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I don't really understand your point. :( |
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I use own deliver tool http://powerman.name/soft/deliver.html to filter |
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spam using hand-made perl regular expressions applied to any email headers |
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and content using any logic expressions like: |
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To(qr/powerman@/) and Cc(qr/powerman@.*powerman@/) |
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(some time ago, after saying "fuck off" to some young spammer who |
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registered in our IT social network and try to discuss "why sending |
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spam is good for fun and profit" I start receiving stupid spam, with |
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my email in To: field and twice again in Cc: field... I think his idea |
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was to deliver 3 spam messages instead of 1 to my inbox, but it all |
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was filtered with simple rule shown above) |
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I carefully write and support these rules, and I'm sure they will never |
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match normal email. So, matched emails are just dropped, without quarantine. |
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This solved spam issue for me for years. But in last months I receive |
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about 20-50 spam messages every day, and it isn't clear for me how to |
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write regular expressions for that spam - every message is too different |
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from each other and rules for filtering them have a chance to match normal |
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mail. |
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Probably it's because I've to public my email on several websites |
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related to IT because I work as freelancer and should provide a way |
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for new customers to contact me. |
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And most spam I receive now trying to mask itself as IT-related message. |
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Looks like greylisting will turn these 20-50 spam messages into 2-5 |
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messages per day. This amount of spam is acceptable to have in inbox |
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without any quarantine. |
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So, if it isn't clean FOR ME how to filter that spam with regular |
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expressions and full Perl power in my hands, then HOW can SpamAssassin do |
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this? Sadly, but Bayes isn't a silver bullet and can't solve this too. |
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IMHO, SpamAssassin and Bayes are good only for people, who choose between |
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two bad things: either they will be unable to handle MOST of their mail |
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because of huge amount of spam, or they will be unable to handle SOME mail |
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(with low enough and acceptable for them probability) because it will be |
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automatically killed as spam or lost in quarantine. Your tuning of |
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spam weight/score which is acceptable for inbox, acceptable for quarantine |
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and acceptable to kill immediately are just tuning of the chance you'll |
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lose normal mail - you make it larger or smaller, but never 0%! |
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Maybe if I will receive 3000 spam which I unable to filter with my |
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custom rules per week, then I will install SpamAssassin and agree to have |
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small chance to lose some mail from time to time... maybe... but I'm not |
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sure and anyway will try to find another solution first (like greylisting). |
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But now I can't agree with any chance to lose mail which is higher than 0%! |
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-- |
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WBR, Alex. |
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