mephistophe...@operamail.com: > smtpd_tls_ciphers = RSA As documented, smtpd_tls_ciphers specifies a cipher GRADE not a cipher NAME.
TLS_README suggests that the grades are export and high. Wietse http://www.postfix.org/postconf.5.html#smtpd_tls_ciphers http://www.postfix.org/TLS_README.html