postconf(1) on macOS
The text 92928ecb8fe7, as Mac OS X 10.7.5, Mac OS X 10.7.4, Mac OS X 10.7.3, Mac OS X 10.7.2, Mac OS X 10.7.1, Mac OS X 10.7 shipped it.
Postfix configuration utility
Flags it lists
-
-# -
-A -
-a -
-b -
-c -
-d -
-e -
-h -
-l -
-m -
-n -
-t -
-v