postconf -e smtpd_tls_session_cache_database="sdbm:/var/lib/postfix/smtpd_scache"
postconf -e smtpd_tls_session_cache_timeout="3600s"
postconf -e tls_random_source="dev:/dev/urandom"
-postconf -e smtpd_tls_mandatory_protocols="SSLv3, TLSv1"
-postconf -e smtpd_tls_mandatory_ciphers="medium, high"
postconf -e smtpd_tls_exclude_ciphers="aNULL"
postconf -e smtpd_tls_mandatory_exclude_ciphers="aNULL"
# ako je postavljen neki drugi certifikat, ne diraj