Mail gateway open source

Here are some popular open-source mail gateways:

  1. Postfix: A widely used, highly configurable, and scalable mail transfer agent (MTA) that can be used as a mail gateway.
  2. Sendmail: Another popular MTA that can be used as a mail gateway, known for its flexibility and customization options.
  3. OpenSMTPD: A modern, open-source MTA that provides a secure and reliable mail gateway solution.
  4. Exim: A highly configurable and customizable MTA that can be used as a mail gateway, known for its reliability and performance.
  5. Qmail: A secure and reliable MTA that can be used as a mail gateway, known for its simplicity and ease of use.
  6. Zimbra: An open-source email server that includes a mail gateway component, providing a comprehensive email solution.
  7. OpenDMARC: An open-source implementation of the DMARC (Domain-based Message Authentication, Reporting, and Conformance) protocol, which can be used to secure email communications.
  8. SpamAssassin: An open-source spam filtering system that can be used as a mail gateway component to filter out spam emails.
  9. ClamAV: An open-source antivirus engine that can be used as a mail gateway component to scan emails for malware.
  10. Surbl: An open-source system that provides a list of known spam and phishing URLs, which can be used to filter out spam emails.

Some popular open-source mail gateway distributions include:

  1. PostfixAdmin: A web-based administration interface for Postfix, providing a user-friendly interface for managing mail gateways.
  2. MailScanner: A mail gateway solution that provides spam and virus filtering, as well as other security features.
  3. OpenMailBox: A web-based mail gateway solution that provides a comprehensive email management system.
  4. Mail-in-a-Box: A self-contained mail gateway solution that provides a complete email infrastructure.

When choosing an open-source mail gateway, consider factors such as:

  1. Security: Look for solutions that provide robust security features, such as spam and virus filtering, and encryption.
  2. Scalability: Choose a solution that can handle a large volume of emails and scale as your organization grows.
  3. Customizability: Select a solution that allows for customization and configuration to meet your specific needs.
  4. Community support: Consider the size and activity of the open-source community surrounding the solution, as well as the availability of documentation and support resources.
  5. Integration: Choose a solution that integrates well with your existing infrastructure and systems.