Diffie-Hellmann Parameter erstellen
openssl dhparam -out /etc/postfix/dh_512.pem -2 512 openssl dhparam -out /etc/postfix/dh_2048.pem -2 2048 chmod 400 /etc/postfix/dh_512.pem chmod 400 /etc/postfix/dh_2048.pem
Server, der keine eigene Mail zustellt:
relayhost = mailserver.example.com
Computer nur zum Mailversand
mydestination = $myhostname, localhost.rowa.int, localhost relayhost = ... inet_interfaces = loopback-only inet_protocols = ipv4