I installed once my home server new, with postfix as satelite system and got always one error. While sending mails with attachment the log file show following error: delivery temporarily suspended: lost connection with while receiving the initial server greeting The reason was my mistake. I didn’t see, that inet_interfaces was set to loopback-only. The [...]

Ich gehe hier von einer funktionierenden Konfiguration des Postfix Server Dienstes aus. Um den Server zum RelayHost zu ändern müssen wir die Konfigurationsdatei /etc/postfix/main.cf anpassen: relayhost = [my.relay.host] # [] verhindern ein dns lookup. So sollte kein mx record existieren # klappt es trotzdem smtp_use_tls = yes smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/smtp_auth smtp_sasl_security_options = [...]