mailinabox

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

⭐ 15,314 stars on GitHub · 🍴 1,535 forks · 📜 License: cc0-1.0 · 💻 Language: Python

What is mailinabox?

Deploying a fully functional, secure email server usually requires days of wrestling with Postfix, Dovecot, and DNS records, but this automated appliance reduces the entire process to a single deployment script. It transforms a fresh Ubuntu machine into

Topics: the project is tagged with popular topics:

• 🏷️ email
• 🏷️ mail
• 🏷️ server
• 🏷️ smtp

Quick install

See the README for detailed install instructions. Most projects support Docker — if the repo has a Dockerfile, use:

git clone https://github.com/mail-in-a-box/mailinabox.git
cd mailinabox
docker build -t mailinabox .
docker run -d -p 8080:8080 mailinabox

Minimum system requirements

⚡ Deploy fast on VSIS

Use the VSIS VPS Mini 1GB RAM / 1 vCPU / 15GB SSD (~70k/tháng) plan from VSIS.NET — high-speed VN-based VPS, 24/7 support, ideal for running mailinabox smoothly.

🎯 Benefits:

• One-command docker compose up -d deploy in 2 minutes
• Dedicated IPv4, root access, unmetered domestic bandwidth
• Daily snapshot backup
• Free install assistance from the VSIS team

👉 See matching VPS plans at vsis.net

Resources

• 🔗 GitHub: mail-in-a-box/mailinabox
• 🌐 Homepage: https://mailinabox.email/
• 📚 Official docs: see README in the repo
• 💬 Community: GitHub Issues + Discussions

Article compiled from GitHub data on 30/05/2026. Star/fork counts may have changed — see live numbers via the GitHub link.