Have a client running Exchange 2010 on 2008R2 and one of their vendors is requiring all SMTP after 1/1/20 be TLS 1.2
I have read through the documentation/KBs & blogs.
Setup looks straightforward. They are good on OS/KBS and Exchange version (2010 sp3 CU23).
Add the registry keys & reboot.
Question.. how do I set all SMTP traffic to that domain be forced TLS?
Setup a Partner send connector their domain? Does that force TLS?
Having some trouble tracking that piece down. Any help would be appreciated.