Hi, I've a cyrus-imapd 2.3.12 installation with these options in imapd.conf tls_cert_file: /etc/exim/etc/server.crt tls_key_file: /etc/exim/etc/server.key tls_ca_file: /etc/pki/tls/certs/ca-chain.crt tls_require_cert: 0 SSL and STARTTLS are working fine. I've imported a personal S/MIME certificate to thunderbird. When connecting to the IMAP server (using STARTTLS), thunderbird asks me to select a client cert, showing (translated from German): This website (!) requires a certificate for identification ... Chose a certificate ... The server doesn't and shouldn't accept client certificates. So who is wrong? My configuration, thunderbird ... I hope somebody will enlighten me ... Thanks, Frank -- E-Mail: Frank.Richter@xxxxxxxxxxxxxxxxxx http://www.tu-chemnitz.de/~fri/ Work: Computing Services, Chemnitz University of Technology, Germany ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html