Quick scenario breakdown
4 2010 exchange servers
Primary 2010 - A - Outlook Anywhere enabled
Offsite 2010 (B and C) - with internal replays to the primary A - outlook anywhere not enabled
DR exchange for failover -D - outlook anywhere not enabled
2 new Exchange 2016
Primary 1 exchange 2016 - outlook anywhere enabled
DR exchange 2016 for failover 2 - outlook anywhere enabled - different autodiscover name
We installed our new exchange with no problems and just moved the DNS OWA record from Primary A (ex2010) to Primary 1 (ex2016). The next day, I get reports that exchange B and C (both 2010 with internal relays to Primary A) are not able to connect to exchange outside of our network. Quick work around for this was moving them to the new exchange 2016.
I go to install the DR exchange 2016 (2) and I get a .local cert error from hell. This thing was killing me for 2 weeks. Finally figured out that I need a cname to point from DRexchange2016.company.com
al. Then I changed all the internal URL's from .local to .com. This fixed the issue.
I still get users externally trying to connect to the DRexchange2016.company.com
, but the fix for this is just adding the external URL to all the virtual directory.
So what is the point of this long explanation. My question:
If I have Primary exchange A and Primary exchange 1 (2010 and 2016) pointing to the same Owa.company.com (cname is owa.company.com to saexchange2016.company.loc
al). Can I point DRexchange2016.company.loc
al to the owa.company.com in the virtual directory? Or do i have to make a new cname with a different path? If I do change it to the owa.company.com, do i have to reboot the server or just the iis?
Can I make EX2010 B and C external URL point to owa.company.com and leave outlook anywhere disabled?
Also, is there a way to turn off MAPI by server?
I read this blog article, but didnt understand much of it: https://blogs.technet.microsoft.com/exchange/2015/10/26/client-connectivity-in-an-exchange-2016-coexistence-environment-with-exchange-2010/
Thanks for the help in advance.