> The way I read his request is that he wants to forward non-spam > only, and is looking for a Postfix solution that supports this. > > The best proposal I can come up with is a Milter that triggers on > headers added by has spam filter, and that adds a second > recipient only if the mail does not appear to be spam.
Not the best but maybe another option, if you can't find/write a milter: Set up a 2nd postfix instance that acts as relayhost for the first. There you could discard or redirect unwanted messages with header_checks. One possible disadvantage is that this would happen for *any* outgoing mail (not only the forwarded ones).
