Pre upgrade environment. 1 2010 CAS cas.domain.com 2 2010 MBX
Current environment. 1 2010 CAS 2 2010 MBX 1 2016 Exch box temp.domain.com So, the next step is to get the 2016 box to act as the CAS for the mailboxes on the 2 2010 MBX boxes for OWA and ActiveSync. Got OWA no problem. ActiveSync for Android/iPhone is not co-operating. Looking at the above, what I am trying is to just manually edit the account info on the phone show the server is temp.domain.com Windows Auth for Microsoft-Server-ActiveSync on the 2010 CAS.
