I'm trying to setup permissions per new options in Bug 9620. In the release notes, I see:
Administrators can define which users are authorized to send messages to
a distribution list. The default is all users can send to all distribution lists.
The Milter Server needs to be enabled via the server MTA tab in the
administration console to restrict access. (Bug 9620, 46311, 50348)
OK, once Milter Server is enabled, where and how do I actually setup the permissions/restrictions to DLs?
UPDATE: Nevermind - I see the answer in comment #88 of
https://bugzilla.zimbra.com/show_bug.cgi?id=9620. This is CLI only, no UI.