On Mon, Mar 22, 2021 at 10:17:16AM +1000, Simon Wilson wrote: > I've removed mynetworks_style based on improved knowledge as noted > above; commented out append_dot_mydomain and relay_domains, have set > compatibility_level to 0, and will monitor for messages.
The right compatibility level to set after you're comfortable with your main.cf file is the one found in the stock main.cf file for the Postfix version in question. With Postfix 3.5 that's "2". -- Viktor.