Outlook must be online or connected to complete this action. Solution: To use Outlook 2016 with an Exchange 2007 resource, you can: Uninstall Outlook 2016 and then reinstall Outlook 2013 on your PC, if you upgraded to Office 2016 from a Microsoft 365 subscription.
#Outlook 2007 and exchange 2016 windows#
After restarted outlook i getting a message saying: 'The connection to Microsoft Exchange is unavailable. These errors occur because Outlook 2016 for Windows doesn't support connections to Exchange Server 2007 and earlier. At this point you get a disconnect and mailbox or calender wont be accessible. I just installed and get everything to work with my new Exchange 2016 server, but when i adding it to Outlook 2013 i autodiscover setup works and it says restart outlook. That bypasses the policys and does autodiscover for that mailbox hitting the 2016 CAS. If you are running Exchange 2007 and you want to use Outlook 2016 I’ve got some bad news for you, this is not going to work. Mailboxes with Outlook 2007 can be on Exchange 2010 or 2016 (doesnt matter for me). Just a quick heads-up regarding Outlook 2016 which was released recently.
All Outlook clients are in the same AD site. As soon as a 2016 user delegates his calendar or mailbox for acces to a 2010 user, It is the client Is there any possibility to mitigate incopatibility problems Lets say force Outlook 2007 clients to connect to CAS 2010 and the others to Exchange 2016.
This can be done by autodiscover pointing to 2016 and have your 2007 clients use policys. If a user on outlook 2007 connects to exchange 2010 all works fine. All client will need to go thrue the highest version of exchange in the environment ( except exchange 2016 as 2013 can proxy up ) due to collaboration between your users.let me explain:
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