Postfix Mail relaying with smtp auth

1 notice

this is a sample config to enable mail sending for system mails or forward mails from mailserver by smtp-auth.

2 howto

vi /etc/postfix/password
---
#smtp.isp.com       username:password
smtp.mydomain.com         send-user@mydomain.com:mySecretePassword
---

chown root:root /etc/postfix/password
chmod 0600 /etc/postfix/password
postmap hash:/etc/postfix/password

vi /etc/postfix/main.cf
---
relayhost = smtp.mydomain.com:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/password
smtp_sasl_security_options =
---

/etc/init.d/postfix restart