At 11:31 2002-10-01 -0600, his Kremeness wrote:
I'd like to check incoming messages to see if there is more than one
recipient (in the To: and Cc:, obviously I can't know if there's a Bcc:)
but I'm not sure where to start
Hit the archives. There was discussion of a recipe to identify multiple
like-named recipients in a message (for spam detection) about two or three
months ago. The archives offer a plethora of guidance, if people would
just refer to them...
Basically, just use formail to extract the recipients (To and Cc fields)
into a variable, or use a couple of procmail MATCH rules to do so. Then,
count the @ signs which appear to be part of an address, using scoring on
the extracted variable:
* $ 1^1 RECIPIENTS ?? (\<)${KEYADDR}(_at_)[-a-z0-9_]+\(_dot_)
the $KEYADDR was the first "this-domain" address matched - you could
substitute the character class after the at, plus dot and plus:
* $ 1^1 RECIPIENTS ?? (\<)[-a-z0-9_\(_dot_)\+](_at_)[-a-z0-9_]+\(_dot_)
the score ($=) would be equal to the number of apparent recipients. All
bets are off with turkeys who use name text incorporating an @, but
generally speaking, the above address expression is intended to largely
reduce those mismatches.
---
Sean B. Straw / Professional Software Engineering
Procmail disclaimer: <http://www.professional.org/procmail/disclaimer.html>
Please DO NOT carbon me on list replies. I'll get my copy from the list.
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