Free e mail server software

Here are some free email server software options:

  1. OpenSMTPD: A free and open-source SMTP server that can be used to send and receive emails. It's available for Linux and macOS.
  2. Postfix: Another popular open-source SMTP server that's widely used. It's available for Linux and macOS.
  3. Sendmail: A free and open-source email server that's been around for a long time. It's available for Linux and macOS.
  4. Exim: A free and open-source email server that's known for its reliability and security. It's available for Linux and macOS.
  5. iRedMail: A free and open-source email server that's designed to be easy to install and configure. It's available for Linux and macOS.
  6. Mail-in-a-Box: A free and open-source email server that's designed to be easy to install and configure. It's available for Linux and macOS.
  7. Zimbra: A free and open-source email server that's designed for small to medium-sized businesses. It's available for Linux and macOS.
  8. OpenMailBox: A free and open-source email server that's designed to be easy to install and configure. It's available for Linux and macOS.
  9. Mailserver: A free and open-source email server that's designed to be easy to install and configure. It's available for Linux and macOS.
  10. Virtuoso: A free and open-source email server that's designed to be easy to install and configure. It's available for Linux and macOS.

Please note that while these options are free, they may have limitations compared to commercial email server software. For example, they may not have the same level of support or scalability.

Before choosing an email server software, consider the following factors:

It's also important to ensure that the email server software you choose is compatible with your operating system and meets your specific needs.