smtp_sasl_auth_enable = yes smtp_sasl_password_maps = static: secret:secret smtp_sasl_security_options = noanonymous smtp_tls_security_level = may smtp_tls_loglevel = 1 relayhost = [smtp.haskimail.ru]:25 sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay email@yourdomain.com [smtp.haskimail.ru]:25 postmap /etc/postfix/sender_relay /etc/rc.d/init.d/postfix restart