Office 365 says goodbye to Outlook 2007

September 8th, 2017

Office 2007Outlook in Office 2007 will stop working with Office 365 after October 31st, 2017.

Not partially.  Not feature loss.  It won't work.  You won’t be able to connect your Outlook 2007 to Office 365 in order to get your email or synchronize calendars, contact lists or tasks.

Ok, truth be told, there is a way to connect for email.  But it’s a bad way.  Don’t.  Even.  Think.  About.  It.

If you’ve been keeping score, Office has been updated 3 times since 2007.  Office 2010, 2013 and now 2016.

And it’s all about security.  Earlier version of Outlook used a technology called RPC over HTTP (aka Outlook Anywhere) to ensure a secure connection between Outlook and Exchange (the server part that stores and process email and resides in the cloud for Office 365).

RPC over HTTP was introduced back in 2003.  The year “Finding Nemo” was released.

In its place, Office 2016 is using MAPI-over-HTTP.  It’s more secure and more resilient to intermittent network connectivity.

What about Office 2010?

It’s important to know that mainstream Microsoft support for Office 2010 has expired.  That said, it’ll still work if you have installed updates to at least build # 14.0.7164.5002.

What about Office 2013?

Office 2013 is still supported by Microsoft, but it still needs to be patched.  That said, it’ll still work if you have installed updates to at least build # 15.0.4779.1002.

Now What?

As always, we here at Simplex-IT are here to help.  If you are using Office 2007 with Office 365, you can either:

  • Just download Office 2016 (if your Office 365 subscription includes the licensing for Office).
  • Change your Office 365 licensing to include Office and download Office 2016

Contact us at if you need help on this or any other aspect of Office 365.  We're happy to help!

Read this article for more information