It has always been the case that the only supported patch level for Exchange on-premises – whether Exchange 2010, 2013, 2016 or soon 2019 – is n-1. Meaning that although your Exchange organisation doesn’t need to be bang up-to-date to be supported in a hybrid relationship with Exchange Online, you have to remain effectively within … More Office 365 Hybrid Configuration Wizard no longer runs with unsupported versions of Exchange
In a couple of scenarios recently I have come across clients where they have TMG/UAG/ISA in front of their Exchange Hybrid deployment and cannot allow traffic through to their Exchange infrastructure that isn’t pre-authenticated at the reverse proxy. This became a stumbling block most notably for Free/Busy with Exchange Hybrid – which uses Autodiscover to … More Manually setting Free/Busy endpoint for Exchange 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
The Exchange Team Blog announced yesterday that the latest update for the Hybrid Configuration Wizard for Exchange now supports Exchange 2010 SP3. This will be a massive boost to many businesses who are currently on 2010 and moving to O365, and will make setting up the Hybrid configuration in 2010 much easier, taking away one … More Update to Office 365 Hybrid Configuration Wizard brings Exchange 2010 support!