smtp_tls_security_level = verify smtp_tls_CApath = /etc/ssl/certs smtp_tls_loglevel = $smtpd_tls_loglevel smtp_tls_mandatory_protocols = $smtpd_tls_mandatory_protocols smtp_tls_mandatory_ciphers = $smtpd_tls_mandatory_ciphers smtp_tls_exclude_ciphers = $smtpd_tls_exclude_ciphers