Setup: New install of ubuntu-20.10 Internet host on home lan with no real FQDN postfix ver. 3.5.6
I'm having a heck of a time getting anywhere with a postfix installation. I've filled out the main.cf several different ways and added the passwd hash for smtp auth of a SmartHost but instead of posting my efforts I want to know first, if it really is possible to set up a working postfix in my no `resolvable FQDN' situation. If so, some URLS or examples would be very helpful. I have went thru quite a few already.
