[Note] This thread was originally posted on MSDN. As the MSDN Exchange Dev forum mainly focuses on developing issues and the TechNet Exchange forums for general questions have been locked down, we manually migrated this one to Microsoft Q&A platform to continue the troubleshooting.
I have a Server 2012 R2 with Exchange Server Standard installed. Its been working for 3 years without mayor issues, but a couple of months now I been experience a torrent of errors in the system logs file:
A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 80.
I need some guidance to troubleshoot this. There is nothing in Google, Microsoft Forums that actually fix of help find the source of this issue.
Most of the odd responses are: "Turn the alert off and the problem go away" scenario.
But when I clear the log, it takes 10 seconds to register at least 50 entries.
There is nothing there to help me even start looking for a solution.
Anyone that successfully have a procedure to troubleshoot this?