Retiring our hybrid Exchange Server

Hi Drew,

I assume you're talking about this article; https://technet.microsoft.com/en-us/library/dn931280(v=exchg.150).aspx

Support is right in saying that while you have directory syncronisation turned on, it makes it difficult to remove the Hybrid. This is because the on-premises system is the "source of truth". For more detailed information there is a MS blog article here; https://blogs.technet.microsoft.com/exchange/2012/12/05/decommissioning-your-exchange-2010-servers-in-a-hybrid-deployment/

If you're not hosting any production mailboxes in the environment, and do not have licenses, then you might be entitled to a license if you need to maintain Hybrid servers; https://support.microsoft.com/en-us/kb/2939261 however, i would confirm this with your licensing team and support staff.