Tobias Nord wrote: > I am investigating why all mails from a certain mailing list I have joined > are classified as spam by razor-check. Everything I have read states that > headers do not affect classification, but if I replace the headers the > same message actually passes! Have I misunderstood something about how the > filter works? >
Did you make both tests at the same point in time? Remember, as time passes, razor changes. Also, did you change any headers that might contain URLs? (ie List-Unsubscribe:) I'm not sure, but e8 might extract URLs from headers, which would be somewhat of an exception to the 'no headers' rule, but given that e8 is only looking at URLs, it might make sense here. Even if that much is true, the "no headers" rule still applies to e4, and e8 won't categorize "normal" header content, just URLs. For what it's worth I did a test on e4. I grabbed a spam message listed by razor, and tested the original and a modified copy. origninal test message: mail 1.0 e=4 sig=py7ou-MVtaytLyhN8r4uYdgtr80A: Is spam: cf 100 >= min_cf 21 The modified message produced: mail 1.0 e=4 sig=py7ou-MVtaytLyhN8r4uYdgtr80A: Is spam: cf 100 >= min_cf 21 The modified message differed in every header in the message. I Altered all of the following headers: Received (all of them), From, To, Subject, Date, Message-ID, X-Mailer And deleted: MIME-Version, Content-Type,Content-Transfer-Encoding, x-priority, X-MSMail-Priority,X-MimeOLE, Thread-Index,X-Greylist and all mailscanner generated headers. And still e4 generated the same signature. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Razor-users mailing list Razor-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/razor-users
