We think alike.
I actually did try switching to SMTPS, doing exactly what you suggested prior to my last post.
For some weird reason, though, the system no longer seems to use the correct port. But then, that could be because I guessed at the smtps property for setting the port.
My first attempt, I left the mail properties as they were, just changing the transport from smtp to smtps. The transport attempted to connect to the wrong port.
Then I added the property: mail-smtps-port and set it to my port number. For some reason my port number was still ignored.
Am I adding the wrong property for smtps?
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