I see old topics on this, but thought it worth checking again. I have not been able to get my Mac Mail (5) to connect with iCloud when I uncheck “Use SSL,” even with imap.mail.me.com as one of the Secured Servers in the Avast! Preferences>Mail Shield Advanced>SSL>Secured servers.
Though the old posts on this topic are inconsistent, my overall sense was that Avast! was working on this problem. Is this right?