[Rspamd-Users] Hybrid Setup Pre and Post-queue filtering with Postfix

[Gerald Galster]

> If I setup milter (pre-queue) and content filter (post-queue) on postfix
> for rspamd

Don't do that. The preferred way is milter with pre-queue as rspamd is
very fast. It's very unlikely a message's classification will change
in the fraction of a second between pre- and post-queue.

> , I get only the milter part (pre-queue) working because it

That is all you need.

> appears that rspamd is ignoring  the file worker-proxy-postqueue.inc (no
> socket is created for localhost:11337) with the following content
> 
> bind_socket = "127.0.0.1:11337"; # Proxy worker listens for SMTP connections

No.                                               ^^^^^^^^^^^^^^^^

> milter = false;                                 # Disable Milter protocol

This enables rspamd's http protocol which is not compatible with postfix.

Maybe you should read up on how milter works. It's not a server that you
deliver an email, that is processed and then reinjected on another local
postfix port. It is more like a conversation on a single connection with
postfix where milter has access to every smtp stage and can accept, block,
ignore or modify data while in transit.

Best regards,
Gerald