A critical security vulnerability has been identified in Microsoft’s Hosted Exchange that requires an immediate patch for both the Hosted Exchange 2010 and Hosted Exchange 2013 systems. This patch will begin implementation on Saturday, 5/16/20, at 10:00 am EST (7:00 am PST).  It is expected to take most of the day to complete.

Please note: the planned patch may result in brief disconnections of email clients as the front end servers are patched.  It may remove the ability to manage your hosted services for Microsoft Exchange 2010 within our Legacy platform, including user adds/deletes, quota changes and the like. There is no expected impact on the ability to manage hosted services within Exchange 2013.

If you have any questions about the update process please contact the support team.