Installation of Exchange 2016-Learning to Configuring Outlook Web App Mailbox Policies

Over this point, you may use the following command to setup and configure instant messaging on the appropriate Outlook Web App mailbox policy (or policies). For instance, this command, executes on one of your mailbox servers, enables and empowers the instant messaging on the Default policy:


Set-OwaMailboxPolicy -Identity “Default” -InstantMessagingEnabled $True -InstantMessagingType “OCS”


Exchange instant Message


This command will enables instant messaging for all your Outlook Web App mailbox policies:


Get-OwaMailboxPolicy | Set-OwaMailboxPolicy -InstantMessagingEnabled $True -InstantMessagingType “OCS”

After the mailbox policy has been enabled then all users controlled and managed by that policy will have full integration among Skype for Business Server and Outlook Web App, provided that:



  • The user has a mailbox on Exchange 2013.

  • The user has been enabled for Skype for Business Server 2015.

  • The user has a valid SIP proxy address.





Learning to Disable Instant Messaging in Outlook Web App


In case you somehow (after all this work) do not wish to integrate Outlook Web App with Skype for Business Server you may run the following command to disable it again:


Get-OwaVirtualDirectory | Set-OwaVirtualDirectory -InstantMessagingEnabled $False

Now for confirming that it works


Exchange outlook Web app






Now that we have finished the tutorial, our last final step is to test mail flow, setup and configure Outlook/ ActiveSync. In case you have configured Internal/External DNS and firewall accurately, then everything must be good to go.


Ensure that port 25 is forwarded accurately from your Firewall to your exchange server.

In case using internal CA, ensure that all clients trust your Root CA

Kristin is a content strategist at Techarex Networks. Kristin follows the B2B technology space closely and loves to write on the latest changes in technology, futuretech and fixes for day to day how to issues. Besides writing Kristin also loves music, moves and skating.

Techarex Networks provides the complete range of Hosted Exchange solutions and services, giving access to reliable, secure, messaging and collaborative enterprise-grade solutions having 99.999% uptime with unmatched SLA. Provide enterprise-level sync with Outlook Web App and mobile devices. Anywhere, anytime access using Instant Message and video calling integration.