A SMTP relay host for transactional based emails from within a k8 cluster.
I needed a smtp relay to use in my Kubernetes cluster that all the different services can use to send notifications with.
Run on docker
docker run --rm -it -p 2525:25 \
-e SMTP_RELAY_HOST="[email-smtp.us-east-1.amazonaws.com]:587" \
-e SMTP_RELAY_MYHOSTNAME=smtp.k8s.yourhost.com \
-e SMTP_RELAY_USERNAME=username \
-e SMTP_RELAY_PASSWORD=password \
ullbergm/smtp-server