Linux POSTFIX Setup throught SmartHost with TLS and Authentication

Job ID: 35681049

Budget: $10 – $30 USD

I need postfix setup (/etc/postfix/main.cf) so that my server can send messages to ProofPoint SmartHost TLS with Authentication.

outbound-us1.ppe-hosted.com:587

I need any emails from the linux server to use this setup and simply pass the message to the smarthost for delivery. I also need to have command sending working as well like this...

sudo echo "TEST" | mail -s "TEST MESSAGE" <email address here>

I have this working with TLS but without authentication with a different smarthost but cannot get it to work with ProofPoint.
Related categories: System Admin Linux VoIP Ubuntu Debian