Built-in Native Mail Server

Sending an email in 2026 should not require a third-party subscription, a complex API integration, or a prayer that your "free tier" doesn't expire. For too long, developers have been forced to choose between the nightmare of configuring Postfix and Dovecot or the privacy compromise of centralized mail providers.

We decided to build a third way. Today, we are unveiling the ODAC native mail engine, a production-ready, high-performance SMTP and IMAP server built directly into the platform.

The Architecture of Sovereignty

When we designed the ODAC mail infrastructure, we knew it had to match the speed and reliability of our proxy and DNS engines. Following our proven hybrid architecture, we built the mail core in Go for maximum concurrency and memory efficiency.

The Go binary handles the heavy lifting of protocol negotiation, SQLite storage management, and high-throughput delivery. Meanwhile, the Node.js orchestrator manages the configuration, DKIM key generation, and seamless integration with the rest of the ODAC ecosystem.

Communication between these two layers happens over Unix Domain Sockets for near-zero latency. This ensures that even under heavy load, your mail server remains responsive and lightweight, typically consuming less than 80MB of RAM in an idle state.

Automated DKIM and SSL

Security is not an afterthought in ODAC. Every mail account created on the platform is automatically fortified with industry-standard protections.

Our engine generates 2048-bit RSA DKIM keys natively and automatically publishes the required TXT records to your ODAC DNS zones. No manual copy-pasting of long strings or waiting for propagation.

SSL management is equally seamless. The mail server shares the same ACME certificate pipeline as your web applications. When your certificates renew, the mail server hot-reloads its TLS context without dropping active connections.

Total Control From the Dashboard

You can manage your entire mail infrastructure without ever touching a configuration file. Everything is available through the ODAC Cloud dashboard at app.odac.run.

From the "Mail" tab, you can create accounts, manage aliases, and monitor usage with a single click. If you prefer the terminal, the ODAC CLI provides the same level of control:

# Create a new mail account
odac mail create -e user@example.com -p password123

# List accounts for a domain
odac mail list -d example.com

Whether you are building a transactional notification system or hosting private corporate mailboxes, ODAC gives you the tools to do it on your own terms.

Why Built-in Matters

The "villain" in the story of modern hosting is fragmentation. Every time you add an external service for mail, logs, or certificates, you add a point of failure and a potential privacy leak.

By integrating the mail server directly into the host, ODAC eliminates the need for external SMTP credentials and complex firewall rules. It just works, right out of the box, with the same "Zero-Config" philosophy that defines everything we build.

The ODAC mail engine is more than just a feature. It is a statement that you should own your data, your communications, and your infrastructure.

Experience total control today. Deploy your first mail server at app.odac.run.