Postfix-Relay

This runs Postfix (as a relay) in Docker. Most home ISPs block port 25, so outbound emails must be relayed through an external SMTP server (e.g., Gmail). This container acts as a single collections point for devices needing to send email. ⚠️ Postfix acts as an open relay. As such, this is not meant to be run on the internet, only on a trusted internal network! ⚠️ Requirements You must already have a account on an external SMTP server (e.g., Gmail, AWS SES, etc...). Your external SMTP server must be using encryption (i.e., plaintext is not allowed)