Mail (Mavericks) "The identity of "****.com" cannot be verified.
I am getting this error message when I'm using Mail. Somehow mail is trying to verify the certificate of a mail server which I used to use, but for which I no longer have an Account or an SMTP server configured. I have no idea why it is trying to open an SSL connection to this mail server since I no longer have any use for it (and I'm quite sure my account has been deprovisioned on the server anyway).
Where are all of the accounts listed? I looked in Mail preferences and also in System Preferences/Internet Accounts. I don't have this server referenced anywhere. Why is Mail trying to open a connection to this server? I also checked Messages.app and it doesn't have this server configured either.
HELP the error message won't stop opening. Very annoying. Didn't happen before Mavericks upgrade.
MacBook Pro (15-inch Mid 2010), iOS 7.0.4