How to configure Postfix to relay mail through Gmail (simple step-by-step guide)

#linux #postfix #smtp #tutorial

If you run Linux servers that need to send alerts, backup reports, or monitoring notifications, configuring SMTP can be a pain.

I wrote a short guide explaining how to install and configure Postfix with Gmail as an SMTP relay, including:

• Installing required packages

• Configuring TLS

• Setting up Gmail app passwords

• Securing credentials

• Testing email delivery

Good for small servers, homelabs, monitoring tools, and UPS notifications.

DEV Community