> On Dec 29, 2017, at 11:51 AM, Wietse Venema <wie...@porcupine.org> wrote:
>
> I think the biggest break is smtpd_relay_restrictions because that
> was introduced before the compatibility_level safety net. You may
> have to explictly set smtpd_relay_restrictions to empty.
The default is:
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated,
defer_unauth_destination
Typically, it is sufficient to set:
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated,
reject_unauth_destination
and then optionally adjust smtpd_recipient_restrictions to eliminate the
resulting duplication. You can of course continue to use just the latter,
and set the former empty as noted by Wietse.
--
Viktor.
