Hello List! I am going mad, mad as in crazy. CentOS 5.5 Sendmail 8.13.8/8.13.8 cyrus-imapd.x86_64 -2.3.7-7.el5_4.3 cyrus-imapd-devel.x86_64 -2.3.7-7.el5_4.3 cyrus-imapd-perl.x86_64 -2.3.7-7.el5_4.3 cyrus-imapd-utils.x86_64 -2.3.7-7.el5_4.3 cyrus-sasl.x86_64 -2.1.22-5.el5_4.3 cyrus-sasl-devel.x86_64 -2.1.22-5.el5_4.3 cyrus-sasl-gssapi.x86_64 -2.1.22-5.el5_4.3 cyrus-sasl-lib.x86_64 -2.1.22-5.el5_4.3 cyrus-sasl-md5.x86_64 -2.1.22-5.el5_4.3 cyrus-sasl-plain.x86_64 -2.1.22-5.el5_4.3 I am using Thunderbird to test with. I want completely disallow logins without TLS for IMAP. This is my /etc/imapd.conf configdirectory: /var/lib/imap partition-default: /var/spool/imap admins: cyrus sievedir: /var/lib/imap/sieve sendmail: /usr/sbin/sendmail hashimapspool: true sasl_pwcheck_method: saslauthd auxprop sasl_mech_list: LOGIN PLAIN allowplainwithouttls: 0 allowanonymouslogins: 0 virtdomains: userid tls_cert_file: /etc/pki/cyrus-imapd/cyrus-imapd.pem tls_key_file: /etc/pki/cyrus-imapd/cyrus-imapd.pem tls_ca_file: /etc/pki/tls/certs/ca-bundle.crt I think maybe I am confused here. I thought 'allowplainwithouttls: O' would not allow cleartext passwords but now I am thinking it means only the PLAIN mech. Is that correct? If that is the case, how do I configure the server to only accept PLAIN LOGIN only if there is SSL/TLS present? Right now when I do a packet capture on the session I can see the username and password in cleartext inside of my capture file. Thanks for any help, Jon ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/