Mail: Comcast account already exists
OS X 10.11.1 on a late 2013 iMac. I am trying to move my Comcast email account from pop3 to imap. After saving the email messages that I wanted to keep in a local folder, I deleted the comcast account in Preferences/Accounts. When I try to add the comcast account back in, I get the message that the account already exists. It is nowhere in account preferences, calendar, contacts or notes. I am not logged in to the account via Safari.
Anyone have any ideas on how to get around this?
Thanks.
John
iMac, OS X El Capitan (10.11), Parallels for XP, Win7-64, Win8-64