Postfix reject_unverified_recipient question

[Peter Ong]

----- Original Message -----

> From: "Mohammed Alli" <malli at mcrirents.com>

> You can try this:
> unverified_recipient_reject_code = 550

I was just reading the documentation about it, and found this. However, I fear that this is sort of painting with broad brush strokes. Postfix will reply 550 on any problem even if the final destination server replies with a 4xx. What I really want to do is to make it so that the gateway repeats the error back to the sending server. If the final destination servers says 4xx or 5xx, I need postfix to return the same to the sending server.

p