Stan Hoeppner: > > for other users, the old-syntax was working, now updated > > That's strange. Usually when new syntax is introduced the old syntax is > removed and no longer works. 2.3 -> 2.6 seems a rather long grace > period. Does the pre 2.3 syntax still work today?
With Postfix, support for old syntax is removed from documentation, but usually remains in the code. Examples are "reject_unknown_hostname" and the use of an SMTPD access map without "check_mumble_access". Old syntax is removed when maintaining it becomes a problem. Wietse