> 1) On the Lenny server, the main.cf content_filter sent mail to 10028, the > relay port for dkim_proxy_out, and this system worked! I might be able to > accept sending to the listening port, but the relay port just doesn't make > sense to me.
Unless you have the old config and log files, we can only make (likely false) assumptions, so it won't help here. Also, if that system is gone, you can't test assumptions by changing this or that. A dead end IMHO. > 2) On the current system, the main.cf content_filter configured for 10024 or > 10028 seems to be totally inert, Because mail gets caught by pickup before it has a chance to go through the content filter on port 10024. I don't know if this behavior can be changed (I'm thinking about filters vs milters ?). > not doing anything at all for mail received > from the outside. It's only when I loop back to 10024 after the pickup > filter that messages are scanned. pickup comes very early in the pipe. These are handwritten notes I took when I was learning how e-mail works, it would be nice to have feedback on them ? http://imgur.com/a/Asyqr -- Yassine
