Interestingly, since I installed NTLM support with libsasl2 plugins, I tried it with IMAP server and got the same error: Unable to authenticate via NTLM. The server replied: SASL(-4): no mechanism available: No worthy mechs found even though "Check what server supports" returns "Clear text" and "NTLM". but "Clear text" authentication works fine (I guess no SASL is involved?). ___________________________________________________ . Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.