CF10 Can't Verify Mail Server

So I've been running CF9 on Linux for a while and using CFMail to send email through a client's Exchange 2010 server.
We're attempting to migrate to CF10 on Win2008, IIS7.5. Everything is set and ready to go except I can't get CF10 to verify the mail connection? I've got both mail settings (CF9 and CF10) set the exact same way and can view them open side by side and verify they're identical. However, while the CF9 verifies successfully the CF10 system fails??
I tried sending through CFMail tags while specifying the server credentials and see this in the CF10 log:
"javax.mail.AuthenticationFailedException: No authentication mechansims supported by both server and client"
What does this mean? I know my authentication credentials are correct because I'm able to connect in CF9.
I've turned off all firewalls and still nothing. So, I then tried installing CF10 on my Mac laptop. It, too, will not verify the mail connection!
Is there a known problem with CF10 connecting to an Exchange mail server?
Any ideas?

I "solved" this.
I could find little online and received no comments to this thread. No combination of settings I tried would work and I have no access to the client's mail server. The person who runs that server couldn't run a lemonade stand so no help there.
Then I stumbled across this page:
https://confluence.atlassian.com/display/JIRAKB/No+authentication+mechansims+supported+by+ both+server+and+client+when+Configuring+Microsoft+Exchange+SMTP+Server
Nothing to do with ColdFusion but seemed like a similar issue. I'd never put much thought into CFMail because it was always drop dead simple and simply worked. Focusing on this link's Resolution 2 I wondered if CF used JavaMail and if I could downgrade CFMail? I cracked open CF's 'mail.jar' file and found that CFMail does, indeed, use the JavaMail API. So, I then checked the ColdFusion docs to see if any new features were added to CFMail between CF9 and CF10. None.
So, I swapped out the 'mail.jar' file from my CF9 install to CF10 and restarted. Boom! Everything worked immediately. As far as I can tell I've had no compatibility issues to report.

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Hi mabletonga;
Love your little video!!!!!!
Thanks, Man! That's me when I'm working on a Windows PC but not when I'm home on my Mac!
No problem.
I sincerely apologize if I was 'RUDE' because I get like sometimes. I was just becoming tired of all the people that just complain in their post and from the replies of people that THINK they KNOW how to *FIX IT!* Like my first post to you was just *OFF THE WALL* and I knew that it was not accurate. I want to see if you would reply with more information without me trying to prod you for it. But your reply to my post just hit the wrong nerve. So Sorry.
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Well now, this is what I'm talking about because *IT'S ALL IN THE DETAILS!* I really do appreciate it and now that I have more information, I can find the reason why.
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And I assume that this means you JUST click on the check box, right?
... Secure Sockets Layer (SSL) and X.509 Basic Policy.
Hmm, well you're NOT going to be very happy about this BUT and this is a *REALLY BIG BUT* all you need to do is JUST click the check box and *NOTHING ELSE!* Then ...
Then I hit Connect and I’m asked for my password. I enter it and then off the mail goes.
... and "Wish Upon A Star" that you'll *NEVER EVER* see it again!
Laziness had me avoid typing all of this before.
And my laziness MADE me a Computer Geek so I could sit on my BUTT all day!
Sorry. Hope this is more clear.
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Later ...
!http://homepage.mac.com/buzzlightgear/Buzz.tiff!
Buzz

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Edited by: Siva Kumar Arivinti on Jan 19, 2012 3:16 AM

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