On Aug 18, 2021, at 11:55 AM, Viktor Dukhovni <postfix-us...@dukhovni.org> wrote:
> If you want different processing for inbound and outbound mail, > use separate Postfix instances configured appropriately to the > task at hand. There is a useful distinction to be made between mail that is injected into the system by an authorized user and mail that is not. I think of the former as “outbound” even though that is not technically correct. And it is possible to handle these two kinds of messages differently by using a milter (there may be other ways as well, but I know for sure that a milter can do it). This may not be a smart thing to do, but it is possible. rg
