On Wed, Nov 21, 2007 at 12:29:27PM +0100, Marcin Krol wrote: > Received: from oldieszuhause.de ([212.227.100.209]:60637) > by da2.domeny.com with esmtp (Exim 4.67) > (envelope-from <[EMAIL PROTECTED]>) > > Obviously, envelope-from address is faked.
Why do say it is obvious? It's not obvious to me. > (snip algorithm to compare reverse DNS to sender's domain name) > > Could this work? Pros? Cons? You might find some mileage in decreasing the spam score of the RDNS does match the MAIL FROM domain (for fuzzy, hand-waving definition of "match"). Try it and see what works for you. IIRC this sort of idea has been discussed several times in this list already; I'm sure if you search the archives you'll find the pros and cons put forward on those occasions. -- Dave Evans http://djce.org.uk/ http://djce.org.uk/pgpkey
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