I suddenly can no longer access my GMX account via IMAP. It's happened since I updated my antivirus program (G Data), but turning G Data off doesn't solve the problem, and I can't see any settings in there that might be causing a problem. (I've even explicitly allowed Thunderbird through the firewall, but that makes no difference.) There are no error messages and I've checked all my server settings; they're correct. I updated my GMX password and deleted the saved password in Thunderbird, but the prompt for a new password never came, so I can only assume that the process is hanging or being interrupted before the password is requested. I have restarted my computer, restarted the router, and uninstalled and reinstalled Thunderbird, and none of these things have had any effect whatsoever. The effect is that the toolbar at the bottom shows "Connected to imap.gmx.com..." but nothing else; the process seems to freeze there without generating any log or error message that I can find at all. Can anyone help? Thanks!