docker-compose-test-mail.yml

version: '3.7'
services:
  test-mail:
    image: harobed/docker-heirloom-mailx:latest
    command: mailx -v -r "noreply@gitlab.example.com" -s "GitLab test" -S smtp=smtp://postfix:25 -S smtp-auth=login -S smtp-auth-user="user" -S smtp-auth-password="password" contact@stephane-klein.info

networks:
  default:
    name: gitlab