Haraka

Haraka

Haraka is an open source SMTP server written in Node.js. It is designed to be easy to install and configure, while also offering excellent performance and reliability. Haraka aims to provide a secure, flexible, and scalable SMTP solution.
Haraka image
smtp nodejs email server

Haraka: Open Source SMTP Server for Node.js

An open source SMTP server with excellent performance, reliability, and security, designed for easy installation and configuration in Node.js.

What is Haraka?

Haraka is an open source SMTP server written in Node.js. It was created in 2013 by Matt Sergeant as a faster and more extensible replacement for the qmail message transfer agent (MTA). Some key features and benefits of Haraka include:

  • Easy installation and configuration using JavaScript or JSON files
  • Support for plugins to customize functionality
  • High performance - benchmarks show Haraka handles thousands of messages per second
  • Scalable architecture suitable for small and large deployments
  • Flexible email processing with support for plugins and hooks
  • Security mechanisms like spam filtering, virus scanning, and sender policy framework
  • Active development community with frequent updates and fixes

Overall, Haraka is a great fit for anyone looking for an easy-to-use yet powerful open source SMTP server. With its modular architecture, security features, and focus on extensibility, Haraka is an excellent alternative to other MTAs like Postfix or Sendmail for mail delivery and processing.

Haraka Features

Features

  1. Built on Node.js for high performance
  2. Plugin architecture for extensibility
  3. Support for multiple platforms
  4. Easy installation and configuration
  5. Built-in spam filtering
  6. TLS and SMTP authentication support
  7. Milter support for integration with external filters
  8. Rate limiting and greylisting capabilities
  9. Header and body filtering
  10. Detailed logging and metrics

Pricing

  • Open Source

Pros

High performance and scalability

Easy to install and configure

Extensible through plugins

Active development community

Free and open source

Cons

Limited built-in web interface

Steeper learning curve than some SMTP servers

Requires more technical expertise to manage

Not as feature rich as some commercial options


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