For the latest development versions, including the 5.7 beta , visit the hMailServer GitHub .
Windows Server 2012, 2016, 2019, 2022, or Windows 10/11 (for testing/local development). Framework: Microsoft .NET Framework 3.5 or higher.
In the "Settings > Advanced > SSL Certificates" section, add a certificate (like a free one from Let's Encrypt) to secure your connections. Conclusion
For production use, download from the official website. Only use 5.7 for testing purposes. download full hmailserver 57
Pre-configured versions for cloud environments are available on the Microsoft Marketplace . Installation & Setup Guide hMailServer - GitHub
The setup utility will require you to create a master security password. This password grants access to the hMailServer Administrator GUI. Write this password down securely; losing it requires resetting the configuration files manually.
For years, hMailServer has been the gold standard for open-source email hosting on Windows. If you are looking to download the latest , you are stepping into a powerful, albeit community-maintained, territory. While official development from the original creator has halted, version 5.7 continues to serve as a vital tool for those needing a lightweight, native Windows solution for SMTP, POP3, and IMAP services. What is New in hMailServer 5.7? For the latest development versions, including the 5
The Future of hMailServer 5.7: Essential Guide for Windows Email Hosting
Set a maximum size limit (quota) for this specific mailbox under the field if desired. Click Save . 4. Configure SMTP (Outbound Mail Routing)
Which do you plan to use (Built-in, MySQL, or SQL Server)? In the "Settings > Advanced > SSL Certificates"
Integrated support for SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), Blacklists (DNSBL), Greylisting, and White-listing.
Always verify the SHA-256 hash. A legitimate hMailServer-5.6.8-B2574.exe should match the hash posted on the official forum.