How do I configure Postfix to use SMTP-Auth?
Some useful links:
http://www.thecabal.org/~devin/postfix/smtp-auth.txt
http://www.mandrakesecure.net/en/docs/postfix-sasl.php
http://postfix.state-of-mind.de/patrick.koetter/smtpauth/index.html
https://www.howtoforge.com/perfect_setup_debian_sarge
https://www.howtoforge.com/howto_postfix_smtp_auth_tls_howto
