Warning – Update to Office 365 Certificate could break your Exchange 2013 Hybrid

In a blog post published on 19th February the Exchange Team blog announced that an upcoming certificate renewal for Office 365 on 15th April 2016¬†will¬†break Hybrid mail flow in certain circumstances. These are: If you are running Exchange 2013 CU8 or earlier. You have upgraded to Exchange 2013 CU9 or later, but have not re-run … More Warning – Update to Office 365 Certificate could break your Exchange 2013 Hybrid