I'm still having problems too. I tried both inside Mail and adding account, and sys prefs/add mail acct.
1)Mail app results:
The outlook.com POP server “imap-mail.outlook.com” is not responding. Try checking the network connection, and that the server name is correct. Otherwise, the server might be temporarily unavailable. If you continue, you might not be able to receive messages.
2)Sys pref's results:
The sys prefs/add mail acct-it tries to "contact server" for a long time, then results are:
The Mail server “outlook.com” is not responding. Try checking the network connection, and that the server name is correct. Otherwise, the server might be temporarily unavailable.
3)re Delgado's what to do above, I cannot ever get to the window for putting in all manually, it only wants to auto-find and add. I see no check box to stop this as it's stated above in link: http://support.apple.com/kb/ht1277
where it says: "4. Deselect "Automatically set up account" if it is enabled. Click Continue to proceed." I see NO box to deselect.
I appreciate any other ideas!
P.S. I can get and send mail from other type accounts like Gmail and Yahoo without any problems. It's only outlook.com trying to get my Mac Mail to get my mail from outlook. I can also go to web browser and sign in to outlook.com without any problems on same computer. so it's some prob with mac mail settings for outlook.