> On Oct 22, 2018, at 1:05 PM, Emmanuel Jaep <emmanuel.j...@gmail.com> wrote:
>
> You are also right that openrelay.customer.com has a non-working STARTTLS.
> They actually have neither authentication nor encryption. This is actually my
> current 'challenge': how to set this relay up without encryption and
> authentication while keeping our current config for other relays (encryption
> + authentication).
You can configure a separate transport for this destination. In the
master.cf entry for that transport (clone of "smtp unix" under a different
name) you can change the SASL options as needed for that destination.
As for TLS, you can, if needed, use smtp_tls_policy_maps to change the
TLS security level for that domain, or make the change in the dedicated
transport in master.cf.
--
Viktor.
