OFFICE 365 COMPATIBILITY CHANGES

What:

Outlook 2007 desktop email client application will not be able to connect to the Office 365 Exchange mailboxes.

 

When:

Starting October 31st, 2017 there will be a change on how authentication functions between the Office 365 Exchange online and your local machine’s Outlook program.

 

Why:

It is sparked by the ever-changing security landscape in an effort to provide a more robust authentication process via elective third-party solutions.

 

Who will this affect:

This change will adversely affect any user or organization that is using Outlook 2007 as that program will not be able to connect to Office 365 Exchange mailboxes. If you or your organization are using new versions of Outlook, the breakdown below shows what Updates need to be installed to ensure your connectivity remains intact:

OFFICE VERSION UPDATE REQUIRED BUILD NUMBER
Office 2016 December 8, 2015

Subscription: 16.0.6568.20xx  MSI: 16.0.4312.1001

Office 2013 Service Pack 1, and December 8, 2015 update 15.0.4779.1002
Office 2010 Service Pack 2, and December 8, 2015 update 14.0.7164.5002

 

Unsure if this affects you?

The best way to avoid issues regarding this compatibility change is to have your on-site technician or your trusted outsourced IT partner review your system. This will ensure you and your team have a positive experience as this change is implemented.

 


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