Download Full Hmailserver 57 Fixed | Full Version
Downloading and Installing hMailServer hMailServer is a free, open-source email server for Microsoft Windows. It supports standard email protocols including IMAP, SMTP, and POP3, making it a popular choice for ISPs, companies, and schools looking for a flexible, self-managed mailing solution. Current Version Status
As of early 2026, it is important to note that the original developer has ceased active development of hMailServer.
hMailServer 5.6.x: This is the current stable track receiving only critical security patches. The latest final release is version 5.6.8 (Build 2574).
hMailServer 5.7: This version is currently in beta and is maintained by third-party contributors rather than the original development team. Where to Download
You can find the official installation files and community-maintained builds at the following locations:
Official Homepage: The primary source for stable releases is hMailServer.com.
GitHub Repository: For the latest development versions, including the 5.7 beta, visit the hMailServer GitHub.
Marketplace Options: Pre-configured versions for cloud environments are available on the Microsoft Marketplace. Installation & Setup Guide hMailServer - GitHub download full hmailserver 57
hMailServer is an open source email server for Microsoft Windows. This page describes how to compile and run hMailServer in debug.
As of 2026, hMailServer 5.7 is considered an unofficial beta or "alpha" track maintained by third-party contributors. The original developer has ceased active maintenance of the project. Status of hMailServer 5.7
Release Type: 5.7 is a preview/beta version rather than a stable production release.
Maintenance: It is maintained primarily by community contributors on the hMailServer GitHub.
Key Changes: Unlike the 5.6 track (which uses .NET 2.0/3.5), version 5.7 is built using .NET 4.5 and includes 64-bit support. Download and Availability
Finding a "full" installer for version 5.7 can be difficult because official stable binaries are not hosted on the main website.
Official Build Server: Some users access compiled binaries through the guest login on the hMailServer Build Server. The latest official stable release of hMailServer is 5
GitHub: While the source code is on GitHub, pre-compiled "releases" for 5.7 are often missing from the standard releases page, requiring users to compile it themselves or find community-repacked installers.
Stable Alternative: The latest official stable version is 5.6.8 (Build 2574), with a preview version 5.6.9 (Build 2607) released in March 2023. Critical Security Warning
The hMailServer project is no longer actively developed and relies on outdated security algorithms like SHA1 and older versions of OpenSSL.
Recommendation: Security experts on forums like Reddit's r/sysadmin recommend migrating to modern alternatives (such as MailEnable, Postal, or cloud-based relays) for any production environment requiring high security. x64 build · Issue #426 · hmailserver/hmailserver - GitHub
hMailServer 5.7 is an unreleased, alpha version of the open-source Windows email server
. While the official website typically lists version 5.6.8 as the latest stable release, version 5.7 exists as a series of development builds. Download and Availability
Standard installers for version 5.7 are generally not hosted on the main hMailServer website . To access this version, users typically have two options: Continuous Integration Build Server: If you are specifically looking for hMailServer 5
Compiled binaries for 5.7 (e.g., build #2643) can be downloaded from the hMailServer Build Server by logging in as a guest. Source Code: The code for version 5.7 is available on the hMailServer GitHub repository for those willing to compile it themselves. Key Technical Specifications
Version 5.7 introduced several modernization updates compared to the 5.6 stable branch: Framework: .NET Framework 4.5 by default, whereas older versions relied on .NET 2.0/3.5. Architecture: Specifically built to support x64 (64-bit) environments using Visual Studio 2019. Dependencies: Requires updated components such as Boost 1.72 OpenSSL 1.1.1 Critical Usage Warnings No Active Development:
The project is currently not being actively maintained. Security researchers and community members warn that it uses outdated algorithms (like SHA1) and may be considered insecure for modern production use. Installation Issues:
Users have reported dependency mismatches during installation, such as the libmysql.dll failing to load when using Alpha Status:
Because 5.7 was never officially "released" as stable, it is recommended primarily for testing rather than critical business infrastructure. installation guide
- The latest official stable release of hMailServer is 5.6.8 (Build 2574).
- Version 5.7 is currently in alpha/beta stage and not recommended for production environments. It is primarily for testing on newer Windows versions (e.g., Windows Server 2019/2022) and includes database engine updates (moving from MSSQL CE to MariaDB).
If you are specifically looking for hMailServer 5.7 (experimental):
- Official builds (alpha) may be found in the forum or GitHub area of hMailServer.com.
- Direct links are not promoted because it’s unstable.
- You would need to compile from source or use an unofficial pre-release from community threads – strongly discouraged for live email handling.
Option B: Download the Experimental 5.7 "Full" Version (For Testing Only)
If you absolutely need hMailServer 5.7 (for modern database support or newer TLS), you must get it from the official development branch.
- Go to the official hMailServer GitHub:
https://github.com/hmailserver/hmailserver - Navigate to "Releases" (look for tags like
5.7.0-B2609). - Download the
.exefile from the "Assets" section of the latest 5.7 release. - Warning: You will need a separate MySQL/MariaDB or PostgreSQL server installed (version 10+). The "full" 5.7 installer does not include an embedded database.
There is no "hMailServer 57" final release. The latest tagged build is typically 5.7.0-B2609 or higher.
Problem 2: Windows Defender or SmartScreen blocks the download.
Solution: This happens because 5.7 has fewer global downloads than 5.6. Click More info → Run anyway. Then upload the file to VirusTotal to double-check.
Part 3: How to Download the Official "Full" Installer (Including 5.7 Beta)
To get the legitimate full version (meaning the complete installer with all components), follow these paths: