On Tue, 4 Mar 2003, Vernon Schryver wrote:
There are existing solutions to that problem. One is to reject with
a 4yz temporary failure codes any Rcpt_To address whose filtering
preferences might yield a different answer than the preferences of
the first recipient.
That was an option I considered, but rejected. If you're the tenth
recipient, you might wait a long time to get your e-mail.
A second solution is to resolve conflicts in the correct answer to
the DATA command with a 2yz OK answer but to deliver only to mailboxes
that want the message and silently discard instead of rejecting the
message for other mailboxes.
That is the method I chose also. Actually, I group recipients by
filter preferences, and then re-mail the message to each group with
identical preferences, discarding the original. The re-mailed
messages get filtered, but by then everyone is known to have the same
set of preferences, so the problem is solved.
--
David.
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