On Fri, 25 Nov 2005, Gerard Robin wrote: > Can someone give me some advices to recognize such subject if it's > possible.
Yes, it's possible. The solution is already available, it's called SpamAssassin, and if you're trying to hand-roll your own approach to this problem, you're reinventing an already impressively round wheel. http://spamassassin.apache.org/ http://search.cpan.org/dist/Mail-SpamAssassin/lib/Mail/SpamAssassin.pm Now if SpamAssassin does an inadequate job of filtering based on garbage subject lines, there's a very easy mechanism for adding rules to it so that you can make it do a better job. My strong hunch though is that, out of the box, it will already come with dozens of rules that can be applied to identifying spam just based on characteristics of the subject header alone, as well as hundreds of rules for matching based on other properties, including other headers and the message body itself. Plus, just to make things even better, SpamAssassin can do Bayesian statistical analysis of the messages that *you* consider to be spam or not-spam, so that even messages that slip through the canned rules can still be identified just based on their similarity to spam you've received in the past. Outdoing all this would take considerable effort and a lot of time. You have, I am sure, better ways to spend your time :-) Install SpamAssassin and go find a better way to spend your time than managing your junk mail -- you'll be glad you did :-) -- Chris Devers R±Ð6×ÄÜì
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