Microsoft has announced an upcoming change to Office 365 Exchange Online services that could cause Outlook 2007, 2010 and 2013 email to stop working.
If you use Office 365 for email services, effective October 31, 2017, the protocol previously used by Outlook 2007, 2010 and 2013 to connect to Office 365 will no longer be supported.

How does this affect me?

  1. Outlook 2007 users must upgrade to the latest version of Outlook as users will not be able to connect to Office 365 after 31st If you don’t upgrade, an email will stop working.
  2. Outlook 2010 users will only be able to connect to Office 365 beyond 31st October if updates have been installed to meet or exceed build number 14.0.7164.5002. If you do not apply this minimum patch level, your email will stop working.
  3. Outlook 2013 users will only be able to connect to Office 365 beyond 31st October if updates have been installed to meet or exceed build number 15.0.4779.1002. If you do not apply this minimum patch level, your email will stop working.

What to do next?

  1. Click here to verify what version of Outlook you are using.
  2. If you are still using Outlook 2007, we can provide you with various licensing options to upgrade Outlook. Please contact your Professional Advantage Account Manager to arrange for a license quote.
  3. If you are still using Outlook 2010 or 2013, install the necessary patches needed.
  4. For assistance performing the installation of the latest patches to Outlook 2010 or 2013, please contact your Professional Advantage Account Manager to arrange for a service quote.

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