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After moving from SSL to TLS we are seeing far more unsecured connections on ports 110 & 143. Are we missing something in the SM config to disable non-secure connections on those ports?
I understand that port 25 cannot be locked down due to server to server connections, however I am sure we are missing something to stop the other ports to only use TLS....otherwise we give clients an open door to not configure their incoming connections to our servers correctly.
I am really hoping I/we are missing something and we just need to make a config change to stop this!