[Spambayes] Note on SPAM
T. Alexander Popiel
popiel at wolfskeep.com
Fri Apr 11 12:17:51 EDT 2003
In message: <NFBBLMKMELOCIOBDNDGNMEPNCPAA.sgdavis at koyote.com>
"Steve Davis" <sgdavis at koyote.com> writes:
>
>I have been using the internet for close to two decades and one thing I have
>found to be true about SPAM, without exception. Every e-mail whose header
>shows that it was received from a mailer whose alias resolved to an unknown
>IP address has been SPAM. Frankly, I've been on the lookout for even 1
>legitimate e-mail that resolved to "unknown" -- still haven't come across
>one. I'm not very adept at programming so have never been able to create a
>SPAM removal program.
Mail that I've personally sent out has occasionally had this sort of
marking, because my ISP occasionally gets their reverse-maps messed
up. I would be quite annoyed if this alone caused some of my outgoing
mail to be dropped. Of course, I have trouble producing such samples
on demand, precisely because it is due to the failure of an outside
agency...
>If your developers are already aware of this or just deem it as useless info
>please pardon my intrusion. If not, might I impose on you to relate this to
>the developers?
Not useless, merely ocasionally misleading. If you have tokenization
of the Received headers turned on, then I believe that this clue will
get automatically weighted and factored in.
- Alex
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