Well there we have it, sort of proving that Mail on OSX workshop just fine. Because your Outlook works ok, mine doesn't, so it looks like these cases are isolated from the majority. The stupid thing is we go months without any issues, and then it returns, without any indication as to why it returned. The only thing that PC is doing is updating when MS releases updates. Completely unrelated to the 993 error, closing an IMAP session.Oh well, not my PC anyway.