On Wed, Mar 10, 2021 at 04:45:29PM +0100, Markus E. wrote:
> Sorry, I meant it's empty in my config. I know that defaults to
> "permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination".
>
> But, you gave me a good hint here. I'll try to set
> smtpd_relay_restrictions to "permit_mynetworks, reject_unauth_destination"
> instead (I dont need sasl auth here).
>
> I'll give it a try.
>
> I thought it was enought to have reject_unauth_destination in
> smtpd_recipient_restrictions.
It is. You also need to have the default settings for:
soft_bounce = no
relay_domains_reject_code = 554
Either of:
soft_bounce = yes
relay_domains_reject_code = 454
would explain your symptoms.
--
Viktor.
