I have a client's server that requires TLS authentication for their SMTP server. However, in MBM under ESMTP selection, TLS is not an option. Only lists 3: "Login", "Plain", and "MD5 Challenge-Response"
I see TLS listed under the POP authentication option, but that doesn't work and I seem to need to connect using ESMTP.
What am I missing here? and how do I find a way to authenticate to their smtp server using TLS as they require?
I see TLS listed under the POP authentication option, but that doesn't work and I seem to need to connect using ESMTP.
What am I missing here? and how do I find a way to authenticate to their smtp server using TLS as they require?