Christophs outsourced brain https://www.hackerbruecke.net/ Sun, 12 Apr 2026 15:30:06 +0000 FeedCreator 1.8 https://www.hackerbruecke.net/_media/wiki/favicon.ico https://www.hackerbruecke.net/ https://www.hackerbruecke.net/linux/email/postfix/config?rev=1712422579&do=diff Postfix smtpd (smtp + daemon) = server = Postfix receives mail from a client smtp = client = Postfix sends mail to another mailserver Edit /etc/postfix/main.cf queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix mail_owner = postfix smtpd_banner = mail.example.org myhostname = mail.example.org myorigin = example.org mydestination = mail.example.org mynetworks = 127.0.0.0/8, 10.0.0.0/8 alias_maps = hash:/etc/aliases, ldap:virtualaliases… anonymous@undisclosed.example.com (Anonymous) Sat, 06 Apr 2024 16:56:19 +0000 https://www.hackerbruecke.net/linux/email/postfix/relayhost?rev=1493132193&do=diff Postfix configuration for a relayhost (MX) / Anti-SPAM-/UCE-settings smtpd (smtp + daemon) = server = Postfix receives mail from a client smtp = client = Postfix sends mail to another mailserver used Ports: 10023/tcp: postgrey 10024/tcp: amavisd-new 10025/tcp: policyd-weight anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:56:33 +0000 https://www.hackerbruecke.net/linux/email/postfix/pfs?rev=1493132175&do=diff Postfix Perfect Forwarding Secrecy (PFS) openssl gendh -out /etc/postfix/dh_512.pem -2 512 openssl gendh -out /etc/postfix/dh_1024.pem -2 1024 postconf -e "smtpd_tls_dh1024_param_file = /etc/postfix/dh_1024.pem" postconf -e "smtpd_tls_dh512_param_file = /etc/postfix/dh_512.pem" postconf -e "smtpd_tls_eecdh_grade = strong" postconf -e "tls_preempt_cipherlist = yes" postconf -e "smtpd_tls_loglevel = 1" postconf -e "smtp_tls_loglevel = 1" postfix reload anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:56:15 +0000