If I telnet to port 25 on the server from a *nix box, I get a "220 - Ok" response to a "STARTTLS" directive.
If I telnet to port 25 from a Win2K machine, I still get the EHLO response, but the "STARTTLS" directive results in a "454 - TLS not available due to a temporary reason"
There's no such error message in Courier.
Your connection attempt from the Win2K machine gets hijacked by some stupid proxy.
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