I have an idea for a few rules, but I don't have any idea how to implement them.
Here's the idea. Practically all the "ham" I receive has a "signature" section at the bottom. The signature repeats the name and sometimes the email address in the "From: " header. On the other hand, spam usually doesn't have a signature, and when it does, it lists a "return address" completely different from the one in "From: " or "Reply-to: ".
Is there a way for SpamAssassin to match up the name in the "From: " header with a corresponding name in the signature block at the bottom ?
(the signature starts with a line that contains only "-- ", pronounced "return, dash, dash, space, return").
So I want rules like this:
"If there is an email address in the body or signature, and the last email address matches the Reply-To: address (or, if there is none, the From: address), score -0.2"
"If there is an email address after the signature line, but it matches neither the Reply-To nor the From, score +0.2".
[I'm not sure how to handle the case of *multiple* email addresses in the signature]
"If there is no "-- " signature-start line, score +0.2"
"If the first 2 words after the signature-start line matches the first 2 words in the From: address, it looks like a real name -- score -0.2".
How do I implement that ?
...From: Chris Santerre To: "Spamassassin-Talk (E-mail)" Date: Fri, 25 Jul 2003 10:09:32 -0400 Subject: [SAtalk] [RD] rule discussion
Seeing all these rules has got me wanting to discuss them, and the posts regarding them will no doubt increase. So shall we continue to use SAtalk? I think we should. Maybe just put [RD] in the subject for rule discussion?...
I did the wiki thing, That is kinda cool ;)
Chris Santerre
http://www.merchantsoverseas.com/wwwroot/gorilla/sa_rules.htm
I didn't know there was a wiki until you pointed it out. Cool. Thanks for setting up the wiki, AltGrendel. (Shouldn't http://exit0.us/ have a link to the wiki ?)
-- David Cary
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