I've been using claws-mail with my IMAP server. I'm giving thunderbird a try but it won't work if I have "Use secure authentication" checked under "Server Settings". I thought I had configured the server to use secure authentication only. Here is some of my /etc/postfix/main.cf:
smtpd_sasl_auth_enable = yes smtpd_sasl2_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_policy_service inet:127.0.0.1:10030 reject_unauth_destination, permit virtual_alias_maps = hash:/etc/postfix/virtual message_size_limit = 20480000 smtpd_tls_security_level = may smtpd_tls_auth_only = yes smtpd_tls_key_file = /etc/ssl/postfix/server.key smtpd_tls_cert_file = /etc/ssl/postfix/server.crt smtpd_tls_CAfile = /etc/ssl/postfix/server.pem smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom - Grant -- gentoo-user@lists.gentoo.org mailing list