As I've had several requests, here are some details on settings for Thunderbird (17.0.5) and the Apple Mail app (6.3).

Note: please verify the server name in the OWA web interface as it may NOT be the same for everyone.

If you can't log in to the web interface using your ID (just jdoe), then you need to reset your password on https://password.gmu.edu

When using IMAP, your user name is your full email address ([log in to unmask]).

Thunderbird:

IMAP: pod51010.outlook.com (verify this in the web interface)
port: 993
Authentication method: Normal password
Connection Security: SSL/TLS

SMTP: pod51010.outlook.com (verify this in the web interface)
Port: 587
Authentication: method: Normal password
Connection Security: STARTTLS

Apple Mail app (will require manual configuration):

IMAP: pod51010.outlook.com (verify this in the web interface)
port: 993 (check SSL box next to port)
Authentication: password (on Advanced tab under accounts)

select "Edit SMTP server list" in drop down window for Outgoing Mail Server

server name: pod51010.outlook.com (verify this in the web interface)

On advanced tab:

Check "Use default ports (25, 465, 587)"
Check "Use Secure Sockets Layer (SSL)"
Authentication: Password

I have tested these settings and they work with the versions listed.

Jonathan
-- 
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Jonathan Goldman                    Volgenau School of Engineering
Director of Computing Resources            George Mason University
(703) 993-3506                         4400 University Dr. MSN 4A3
fax  (703) 993-3977                         Fairfax, VA 22030-4444