Open source windows mail server

Here are some open-source Windows mail server options:

  1. OpenSMTPD: A free and open-source implementation of the SMTP protocol, which can be used as a mail server. It's available for Windows, macOS, and Linux.
  2. Postfix: A popular open-source mail transfer agent (MTA) that can be used as a mail server. It's available for Windows, macOS, and Linux.
  3. Sendmail: Another popular open-source MTA that can be used as a mail server. It's available for Windows, macOS, and Linux.
  4. OpenDKIM: An open-source implementation of the DomainKeys Identified Mail (DKIM) protocol, which can be used to authenticate emails. It's available for Windows, macOS, and Linux.
  5. OpenDMARC: An open-source implementation of the Domain-based Message Authentication, Reporting, and Conformance (DMARC) protocol, which can be used to authenticate and protect emails. It's available for Windows, macOS, and Linux.
  6. Mail-in-a-Box: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support. It's available for Windows, macOS, and Linux.
  7. iRedMail: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support. It's available for Windows, macOS, and Linux.
  8. OpenMailBox: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support. It's available for Windows, macOS, and Linux.

Some popular open-source Windows mail server distributions include:

  1. eMule: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support.
  2. MailServer: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support.
  3. OpenMail: A free and open-source mail server solution that includes a web interface, IMAP, POP3, and SMTP support.

Please note that while these options are open-source, they may require technical expertise to set up and configure. Additionally, some of these options may have limitations or restrictions compared to commercial mail server solutions.