I am wanting to achieve Kerberos 5 authentication using cyrus-imapd-2.0.11. Does anyone have this implemented and/or could you provide any suggestions or information that may help? It appears this can only be done currently by the GSSAPI mechanism in SASL 1.5.24. I have found the cyrus-imapd-2.0.11 provided GSSAPI documentation useful and have been able to successfully get the sample-server and sample-client included with cyrus-sasl-1.5.24 to produce positive results that the mechanism itself is working. The cyrus-imapd-2.0.11 (imtest) appears to be able to use the cyrus-sasl-1.5.24 GSSAPI mechanism and responds with Security factor: 54 imapd.conf configdirectory: /var/imap partition-default: /var/spool/imap admins: iadmin sasl_pwcheck_method: GSSAPI srvtab: /etc/krb5.keytab My current configuration consists of: Platform: Sparc OS: Solaris 7 (move kerberos 4 libraries and programs) - Cyrus SASL 1.5.24 - Cyrus IMAPD 2.0.11 - MIT Kerberos 1.2.1 - Berkeley DB.3.2 - Openssl 0.9.6 - GNU Make 3.79 - Zephyr 2.0.4 - tcl 8.0.5 # ldd master libdl.so.1 => /usr/lib/libdl.so.1 libssl.so.0 => /usr/local/lib/libssl.so.0 libcrypto.so.0 => /usr/local/lib/libcrypto.so.0 libdb-3.2.so => /usr/local/BerkeleyDB.3.2/lib/libdb-3.2.so libnsl.so.1 => /usr/lib/libnsl.so.1 libsocket.so.1 => /usr/lib/libsocket.so.1 libc.so.1 => /usr/lib/libc.so.1 libmp.so.2 => /usr/lib/libmp.so.2 /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1 # ldd imtest libsasl.so.7 => /usr/local/lib/libsasl.so.7 libdl.so.1 => /usr/lib/libdl.so.1 libssl.so.0 => /usr/local/lib/libssl.so.0 libcrypto.so.0 => /usr/local/lib/libcrypto.so.0 libdb-3.2.so => /usr/local/BerkeleyDB.3.2/lib/libdb-3.2.so libnsl.so.1 => /usr/lib/libnsl.so.1 libsocket.so.1 => /usr/lib/libsocket.so.1 libc.so.1 => /usr/lib/libc.so.1 libresolv.so.2 => /usr/lib/libresolv.so.2 libmp.so.2 => /usr/lib/libmp.so.2 /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1 Any assistance, references to information, or suggestions to get Kerberos 5 authentication to work with Cyrus IMAP 2.0.11 would be appreciated.