Created attachment 106200 [details] communication log login with authentication set to "GSSAPI" (kerberos5) via unencrypted connection is not possible, connection attempts time out. MIT kerberos5, IMAP server cyrus 2.4 and dovecot 2.2.22, ubuntu 16.04 with kubuntu-backports. thunderbird works ok. mutt works ok. cyrus imtest works ok. tickets are valid and working. investigation reveals that something fishy happens in loginjob.cpp, if i change line 465 to result = sasl_client_start(conn, authMode.toLatin1(), &client_interact, &out, &outlen, &mechusing); everything seems to work. capabilities seems to be empty.
It seems that * initial response with announcement of CAPABILITIES from the imap server (server greeting) is ignored * therefore SASL-IR capability is not known * AUTHENTICATE GSSAPI is sent so server * server responds with continuation * code is not prepared to handle continuation for this case. checking the capabilities in the server greeting can't hurt IMHO, but nevertheless the continuation with authMode "GSSAPI" should be handled.
The problem goes away when using TLS.
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!