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From: rusty@steelmill.cs.umd.edu (Rusty Haddock)
Newsgroups: comp.mail.elm
Subject: Re: Filtering problem (Bcc: bug?)
Message-ID: <26732@mimsy.umd.edu>
Date: 26 Sep 90 22:15:07 GMT
References: <24718@dartvax.Dartmouth.EDU>
Sender: news@mimsy.umd.edu
Reply-To: rusty@steelmill.cs.umd.edu (Rusty Haddock)
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 30

In article <who cares :-> geoffb@eleazar.dartmouth.edu (Geoff Bronner) writes:
   >Several of the lists I am on have many members and when a user sends mail
   >to them the first person to reply to the users mail also Cc'c or Bcc's
   >to the mailing list so that no one else answers the question.
   >
   >...
   >I've talked to the local Unix guru and looked through the manual to see if this
   >was a known bug or feature but no luck.
   >
   >My goal:  To find a way to filter mail by checking the Cc: and Bcc: field
   >          in my .elm/filter-rules.
   >          To find out why the Bcc: field seems to disappear when I am
   >          reading mail (but not when I am composing mail).

You'll only be able to check for the Cc: field as the Bcc:
field is not included in delivered mail message.  This is done
by the MTA (Mail Transport Agent [e.g. sendmail]).  BCC stands
for Blind Carbon Copy [sic] which allows a message to be sent
to an address (or mailing list) without this fact made known to
the To: and Cc: recipients (even if they look at the headers :-).
Yes, this could be done by sending separate mail messages but
it's cheaper (compute/disk effort) to do it this way.

	-Rusty-

--
Rusty Haddock				DOMAIN:	rusty@mimsy.cs.umd.edu
Computer Science Department		PATH:	{uunet,rutgers}!mimsy!rusty
University of Maryland			"IBM sucks silicon!"
College Park, Maryland 20742			-- PC Banana Jr,"Bloom County"