Merge pull request #325 from neuhaus/patch-3

Postfix: Disable SSLv3 for TLS connections

roles/mailserver/templates/etc_postfix_main.cf.j2

@@ -36,6 +36,10 @@ unverified_recipient_reject_code = 554
 unverified_sender_reject_code = 554
 
 # TLS parameters
+smtpd_tls_mandatory_protocols=!SSLv2,!SSLv3
+smtp_tls_mandatory_protocols=!SSLv2,!SSLv3
+smtp_tls_protocols = !SSLv2,!SSLv3
+smtpd_tls_protocols = !SSLv2,!SSLv3
 smtpd_tls_cert_file=/etc/ssl/certs/wildcard_combined.pem
 smtpd_tls_key_file=/etc/ssl/private/wildcard_private.key
 smtpd_use_tls=yes