remove smtp servers from accounts
Yosemite 10.2 (14C109) updated 1/29. Mail Version 8.2 (2070.6)
As a result of my ISP's change to mail servers, I had to delete my old POP and SMTP connections and set up new IMAP and SMTP connections for the two accounts we have here. SMTP looked the same externally, but there were differences in ports, etc.
I have a lingering problem, though. One of the smtp connections I thought I'd deleted is still detected by Mail and used as the default. This zombie account will not send. Mail allows me to select one of the new outgoing addresses and it sends fine from either. When I launch Connection Doctor to delete the connection, it only shows the others -- 2 Comcast and Gmail. System Preferences > Internet Accounts doesn't show it either.
Where do I go to remove this zombie account?
thanks