From: "Loren Wilton" <[EMAIL PROTECTED]> > > However you should examine what proportion of mail nowadays, arriving from > > the internet, *is* addressed to multiple users in the one SMTP > > transaction. This may appear to be a major failing, but in my experience > > it's just not, in real-world use. > > In my experience, virtually all multi-address mail that I receive (and ALL > multi-address mail where all destinations are at the same ISP) are spam. > > Thus an acceptable solution would be to automatically tag all multi-address > mail as spam. :-)
The bigger the ISP the less true this will be. Since the most local ISP here is two people that's a generally good rule. If the email includes Earthlink addresses beyond the two if us it's likely spam. I'd give a modest score to multiple addressed email in general usage. That way ad hoc mailing lists that last a couple weeks would not get penalized too badly. {^_-}