Mox
Self-HostedOpen-source modern email server with built-in security & simplicity
Overview
Mox is a self-hosted email server written in Go, combining SMTP, IMAP, and HTTP services into a single binary. It includes native SPF, DKIM, DMARC support, automatic TLS via Let's Encrypt, and a web UI for management. Deployment is straightforward via Docker or standalone binary, with minimal configuration needed. Ideal for users seeking full control over their email infrastructure without complex setups, offering privacy and security out of the box.
Self-Hosting Resources
Below is a reference structure for docker-compose.yml.
⚠️ Do NOT run blindly. Replace placeholders with official values.
version: '3'
services:
mox:
image: <OFFICIAL_IMAGE_NAME>:latest
container_name: mox
ports:
- "8080:<APP_INTERNAL_PORT>"
volumes:
- ./data:/app/data
restart: unless-stopped Key Features
- All-in-one SMTP/IMAP/HTTP stack
- Built-in SPF/DKIM/DMARC security
- Automatic Let's Encrypt TLS
- Web UI for email management
Frequently Asked Questions
? Is Mox hard to install?
Mox is designed for simplicity—you can deploy it via Docker (pre-built image) or download the binary. Basic setup needs DNS record configuration (MX, SPF, DKIM) and a minimal config file, with clear step-by-step docs to guide you.
? Is it a good alternative to proprietary email services?
Yes—Mox gives full control over your email data, avoiding third-party surveillance. It includes core features like SMTP/IMAP and security tools, though it requires self-hosting effort compared to managed proprietary solutions.
? Is it completely free?
Mox is open-source (MIT license), so it’s 100% free to use, modify, and distribute. Costs only apply to the server/hosting where you deploy it.
Top Alternatives
People Also Ask about Mox
Tool Info
Pros
- ⊕ Single binary deployment (low overhead)
- ⊕ Privacy-focused (full data control)
- ⊕ Minimal configuration requirements
Cons
- ⊖ Requires DNS record setup (MX, SPF, DKIM)
- ⊖ Steeper learning curve for email beginners
- ⊖ Limited third-party integration options