Users of Outlook (for Windows) and Office 365 may have issues connecting to their email on October 31, 2017 because Microsoft is changing their protocol for connections. Outlook Anywhere (RPC over HTTP) will not be supported after that date. MAPI over HTTP will be used for the Outlook client to connect to Office 365. This means that users of Outlook 2007 will be unable to connect as Outlook 2007 does not support MAPI over HTTP. Users of Outlook 2007 must upgrade or use Outlook on the web to get their mail. It also means that users of Outlook 2010, 2013 and even 2016 must have certain updates installed to connect.
Office 2010 Service Pack 2 and the December 8, 2015 update – Version 14.0.7164.5002
Office 2013 Service Pack 1 and the December 8, 2015 update – Version 15.0.4779.1002
Office 2016 December 8, 2015 update – Subscription: 16.0.6568.20xx, MSI: 16.0.4312.1001
The December 8, 2015 updates for Office can be found in Microsoft KB article 3121650.
Outlook for Mac, Outlook for iOS and Android, Outlook for Windows 10 Mobile or Outlook on the web are not affected.
If you are uncertain of the version of Office that you are using or would like to talk to someone about your upgrade options, please contact Solace IT Solutions at (336) 904-9100 or email@example.com and we can help put a plan in place to get you current.