nginx-mailer

Docker image based on nginx:alpine that serves a static site and sends its contact form by SMTP, with optional Cloudflare Turnstile.

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Features

• Serves a static site from a mounted folder with nginx on port 80.
• Contact form endpoint POST /api/contact that emails each submission to one address.
• SMTP over TLS (port 465) or STARTTLS (other ports).
• Optional Cloudflare Turnstile CAPTCHA check.
• One container: nginx and the Go mail service run under supervisord.
• linux/amd64 image on Docker Hub.

Quick start

docker run -d \
  -p 80:80 \
  -v /path/to/site:/usr/share/nginx/html:ro \
  -e SMTP_HOST=smtp.example.com \
  -e SMTP_PORT=465 \
  -e SMTP_USER=noreply@example.com \
  -e SMTP_PASSWORD=your-password \
  -e SMTP_FROM=noreply@example.com \
  -e CONTACT_EMAIL=you@example.com \
  drumsergio/nginx-mailer:1.0.0

The site is served on port 80, with /api/contact and /health behind nginx. Compose and every variable are in Getting started.

Documentation

• Getting started: docker run, Docker Compose, and the health check
• Configuration: every environment variable
• Usage: the contact API and an HTML form example
• Troubleshooting: SMTP and Turnstile failures, and what to put in a bug report

License

GPL-3.0-or-later