'IIS6 SMTP and TLS on outbound connections routing
We have a requirement to enable TLS Encryption on our SMTP Server for Outbound. But Not all of our clients supports TLS Encryption at the moment. So we need to have two SMTP Server where one is with TLS Encryption enabled and one without.
What I am trying to achieve here is:
If the remote server supports TLS encryption, the current SMTP server to send the email to the remote server directly.
If remote server doesn’t support TLS encryption, it will forward the email to the Plain SMTP Virtual Server, which in turn will send the email to the remote server using a plain TCP connection.
Can someone please guide me on how I can achieve the routing process here?
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