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It’s Time To Update Outlook 2007

By:Christine Fettinger

For those still running Outlook 2007, it may be time to update.

On October 31, RPC over HTTP will be changed in favor of MAPI over HTTP. If that sounds like gibberish, here’s what it that means: Outlook 2007 will no longer work. Those still running Outlook 2007 will have to update to a newer version of Outlook or use Outlook on the web. For those running Outlook 2016, Outlook 2013 and Outlook 2010, make sure the latest the cumulative update for your version of Microsoft Office is installed.

What should I do if I am still using Outlook 2007 or an earlier version of Outlook? Why will it no longer work?

Update to a newer version of Outlook. Outlook on the web will still work for those with Outlook 2007, but that is sub-optimal for business purposes.

Outlook 2007 will no longer work because Exchange Online mailboxes in Office 365 will require a MAPI over HTTP connection, meaning Outlook 2007 will be unable to access Exchange Online mailboxes as it uses RPC over HTTP.

What is RPC over HTTP and why is it being replaced?

RPC over HTTP, also known as Outlook Anywhere, is a legacy method of connectivity and transport between Outlook for Windows and Exchange. MAPI over HTTP was introduced as a replacement in May 2014 because it improved the connection resiliency when the network drops packets in transit and enables more secure sign-in scenarios.

What should I do if I am using Office 365 with Outlook 2016, Outlook 2013, or Outlook 2010?

Ensure the latest cumulative update for your version of Office is installed and specifically that your Outlook for Windows clients are updated to work with MAPI over HTTP. The best option is to move to the latest version of Office 2016 as part of Office 365 ProPlus.

For more information about managing updates, get in touch with CyberStreams at (425) 2_74-1121 or right away.