Hi I am taking part in writing an anti spam filter for my uni project. However at the moment I am not getting much spam to my mail server - running dovecot and postfix :) Do you have any suggestions for getting more? Thanks Tom
On Wednesday 21 March 2007 1:47 pm, postmaster at webisp.co.uk wrote:> However at the moment I am not getting much spam to my mail server - > running dovecot and postfix :)You need to be really careful about this. It turns out that getting a *clean* spam feed is quite challenging. You want to make sure it's: * Verbatim spam (not forwarded, classified, or otherwise messed with) * 100% spam, in other words you want to be absolutely certain that a "legitimate" email didn't slip in, for instance, you want to make sure people aren't able to taint it by redirecting real email from their mother-in-law * An accurate representation of the sort of spam you're interested in. For instance, do you care about things that postfix could drop by checking the hostname given with HELO? Are you interested in spam resulting from usenet posts, web spiders, or something else? I have a spam sink--currently turned off--that I can re-enable for you if you aren't too picky about the last point. Better, I think, would be for you to seed your own spam sink, but that takes time and maybe you can't wait. Neale
> Hi > > I am taking part in writing an anti spam filter for my uni project. > > However at the moment I am not getting much spam to my mail server - > running dovecot and postfix :) > > Do you have any suggestions for getting more? > > Thanks > Tom >Oh, Doggy, do I ever: First, set up a few tagged addresses. Post to usenet with some addresses from your server. Respond to a few spams listing your email address as the contact information. Remove all the spam filtering rejection rules from Postfix-- i.e. don't require FQDN for anything, use none of the RBLs, etc... Make a post or three to BugTraq. Post to Slashdot with an address from this domain. Click on popups (in a sandboxed environment-- no point in being stupid!) and give an address at that domain for contact info. This is what my users do, and then wonder why they get spam... -- Jay Request mortgage information, again with that email adress