At 2:35 PM -0400 2006-06-07, Barry Warsaw wrote:
Totally agree. OTOH, don't most MTAs provide /some/ way to call external programs on messages at various points in their workflow?
Sendmail has milter, and that has now been brought into postfix (as of 2.3), but I can't speak for any other MTAs. What would need to happen would be a custom program would have to be written for each MTA to interact with it in the way that MTA works, but which has a deep understanding of Mailman and the configuration for each list and recipient, and could effectively do a "dry run" for each message.
Of course, this would have to happen after the anti-spam/anti-virus milters, and then some sites are going to use accept & scan techniques as opposed to milter, so there may need to be multiple different "MTA adapters", even for a particular MTA.
-- Brad Knowles, <brad@stop.mail-abuse.org>
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