On Tue, Mar 12, 2013 at 03:23:14PM -0500, Noel Jones wrote: > The smtpd_relay_restrictions is intended for relay decisions > only[1]. In this case, that looks like it would be: > > [ ... sound advice ... ] > > [1] of course, you can use smtpd_relay_restrictions -- or not use it > -- however you see fit; "relay decisions only" is more a guideline > than a rule. There are an endless variety of valid uses, and > equally valid to not use it at all.
While there's no enforcement of the "rule decisions" only principle, this could change in the future. I'd like to suggest that this principle be take seriously, if nothing else it makes the configuration easier to understand. If we encourage the same (be it relatively uncommon) opportunities for accidental open-relays into the relay restrictions, that we have in the recipient restrictions, we don't get anywhere. -- Viktor.