Hello folks, about I week ago, I wrote this mail to the main list - but I still was ignored or nobody else was interested for looking in. Nevertheless, I think, I discovered a bug or a regression, but I'm not sure whether it is related to krb5 or to uw-imap. The problem came up when upgrading from krb5 1.4.x to 1.5: ipop3d from uw-imap refuses any POP3 connection with the error message: g_initialize.c:97: gss_release_oid: Assertion `(&(&_m->os) ->n)->initialized == K5_MUTEX_DEBUG_INITIALIZED' failed. Spoken with other words, uw-imap using krb5 1.5: > telnet localhost 110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. ipop3d: g_initialize.c:97: gss_release_oid: Assertion `(&(&_m->os)->n)->initialized == K5_MUTEX_DEBUG_INITIALIZED' failed. Connection closed by foreign host. > And here is uw-imap using krb5 1.4.x: > telnet localhost 110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. +OK POP3 localhost 2004.89 server ready quit +OK Sayonara Connection closed by foreign host. > Any hints or suggestions? Greetings, Robert