Exchange '10 ActiveSync External Access, How to Lock Down to LAN-Only?
Posted on 2013-07-01
By default I believe that ActiveSync is enabled in Exchange '10 (SP3 Ent), as well as for all newly created users, which is fine. We have a third-party solution that will be relaying e-mail and phone policies via ActiveSync and so we do not need to expose ActiveSync out to the Internet, nor would we like to. Presently only OWA is published externally over SSL.
What would be the best way to lock down ActiveSync to only internal LAN use?