With all the media attention for Windows 7 going out of mainstream support, one might forget today also marks the end of mainstream support for Exchange Server 2010.

Exchange 2010, which was released in October, 2009 (which seems centuries ago now), and which still has a very large installed base, is going into the extended support phase.

Depending on your support contract, this means Microsoft will no longer provide free support for this product. Patches for security issues will still be available, and owners of premier support contracts are eligible for non-security updates through extended hotfix support option.

Exchange Server 2010 will reach end-of-life on January 14th, 2020.