I keep getting the error message:

I keep getting the error message:

The MobileMe IMAP server “p01-imap.mail.me.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.

I am trying to set up my mac mail. It used to work fine and all of a sudden it stopped working. Any suggestions as to why I cant make it work? I have tryed deleting the account and starting again but I continue to get this error message. Any help would be greatly appreciated.

Best,

Andrew