Forum Discussion
Preparing Exchange 2010 Hybrid for TLS 1.2
I have an Exchange 2010 SP3 RU16 Hybrid/365 environment. I'm a little confused as to what exactly I need to do to ensure my 2010 server continues to communicate with my tenant on March 1st.
Basically you need to verify that you don't have anything using TLS 1.0 or 1.1 to connect to Office 365. Please refer to the following blog post about this matter: https://blogs.technet.microsoft.com/cloudyhappypeople/2017/12/22/the-end-of-support-for-older-tls-versions-in-office-365/