> These are not "keywords", they are transport names. Transports are > defined in master.cf.
Ahh, so the names are conventional, configurable. Flexible configurability is a theme with Postfix. > The "smtp" transport is for other people's domains, the "relay" > transport is for your domains that are forwarded to other SMTP > servers you manage. > > They are otherwise identical. > > http://www.postfix.org/ADDRESS_CLASS_README.html I've read a lot of these doc pages once but they make more sense after talking through and getting some guidance what goes to what and why and how. Thank you very much, Scott Stirling
