Haraka

Haraka

Haraka is a high-performance, flexible SMTP server designed for modern email needs. Written in Node.js, it supports thousands of concurrent connections and delivers messages rapidly through its asynchronous architecture. With a robust plugin system, developers can customize functionalities, enhancing spam protection and streamlining outbound mail delivery without managing mail storage.

Top Haraka Alternatives

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Modoboa

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hMailServer

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qmail

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Cyrus IMAP

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Kingmailer

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Top Haraka Features

  • High performance SMTP server
  • Open source and extensible
  • Written in Node.js
  • Supports thousands of connections
  • Delivers messages per second
  • Flexible plugin system
  • Asynchronous JavaScript processing
  • Strong spam protection
  • Efficient filtering MTA
  • Scalable outbound mail delivery
  • Supports authentication on port 587
  • DKIM signing capabilities
  • Lightweight with no mail storage
  • Integrates with traditional MTAs
  • Community-maintained project
  • High traffic site usage
  • Customizable server behavior
  • Easy plugin development
  • Active user testimonials
  • Extensive documentation available.