The following are the minimum required Office updates to install to avoid connectivity disruption on October 31, 2017.
Office 2016The December 8, 2015 update Subscription: 16.0.6568.20xx - MSI: 16.0.4312.1001
Office 2013 Service Pack 1 (SP1) and the December 8, 2015 update - 15.0.4779.1002
Office 2010 Service Pack 2 (SP2) and the December 8, 2015 update - 14.0.7164.5002
I'm using Office 365 with Outlook 2007 or earlier. What actions do I have to take?
MAPI over HTTP was not backported to Outlook 2007 or earlier versions. Therefore, Outlook 2007 and earlier versions will be unable to connect