Mail server software for windows

Here are some popular mail server software options for Windows:

1. Microsoft Exchange Server: A popular and widely-used mail server software developed by Microsoft. It's a comprehensive solution that includes email, calendar, and contact management features.
2. Postfix: A free and open-source mail server software that's widely used on Linux systems, but can also be installed on Windows. It's known for its reliability and flexibility.
3. Sendmail: Another popular open-source mail server software that's widely used on Linux systems, but can also be installed on Windows. It's known for its ease of use and customization options.
4. Mercury Mail Server: A commercial mail server software that's designed for Windows and supports POP3, IMAP, and SMTP protocols. It's known for its ease of use and robust features.
5. HMailServer: A free and open-source mail server software that's designed for Windows. It's known for its ease of use and supports POP3, IMAP, and SMTP protocols.
6. MDaemon: A commercial mail server software that's designed for Windows and supports POP3, IMAP, and SMTP protocols. It's known for its ease of use and robust features.
7. Zimbra Collaboration Suite: A commercial mail server software that's designed for Windows and supports POP3, IMAP, and SMTP protocols. It's known for its ease of use and robust features.
8. OpenSMTPD: A free and open-source mail server software that's designed for Windows. It's known for its ease of use and supports SMTP protocol.
9. MailEnable: A commercial mail server software that's designed for Windows and supports POP3, IMAP, and SMTP protocols. It's known for its ease of use and robust features.
10. SmarterMail: A commercial mail server software that's designed for Windows and supports POP3, IMAP, and SMTP protocols. It's known for its ease of use and robust features.

When choosing a mail server software for Windows, consider the following factors:

• Ease of use: How easy is it to set up and manage the mail server?
• Features: What features do you need, such as support for multiple protocols, spam filtering, and antivirus scanning?
• Scalability: How well does the software scale as your email user base grows?
• Security: How secure is the software, and are there any built-in security features?
• Cost: What is the cost of the software, and are there any additional costs for support or upgrades?

It's also important to consider the specific requirements of your organization, such as the number of users, the type of email services you need, and any compliance or regulatory requirements.