I deleted my att.yahoo account from outlook 2010 on windows 7. How do I recover it? The data files are still there and I can see my email address with all the folds. But I cannot send or receive emails.  I have tried many times to add the account back into outlook but it has not worked. Please advise what I can do to recover the account.  Thank you

when trying to download emails for my yahoo account I keep getting the following error message:  The server for account "Yahoo" returned the error "[AUTH] Access to this service is not permitted.." Your username/password or security settings may be incorrect. Would you like to try re-entering your password? 

weird thing is that i have two other yahoo accounts under the same passowrd and security settings that work fine?  I have tried uninstalling the account and adding it back only to have the same problem.  The address has worked fine for over a year and all of a sudden started this two days ago.