Docker image for a Postfix Relay
A Postfix server that relays incoming mails to another server (e.g. Sendgrid)
docker run -d -h postfix --name postfix --restart=always \
-e 'HOST_IP=1.2.3.4' \
-e 'HOST_NAME=mycompany.com' \
-e 'SMTP_HOST=smtp.sendgrid.net' \
-e 'SMTP_PORT=587' \
-e 'SMTP_USER=username' \
-e 'SMTP_PASSWORD=password' \
sismics/postfix-relay