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hMailServer 5.7 — Download & Key Features

Where to download

  • Official installer: Get hMailServer 5.7 from the project's official download page (use the project's main website or its official distribution page).
  • Mirror/archives: Older installers may also be available on reputable archive/mirror sites if the main site no longer hosts the file.

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5. Security Patches

Several unpublished CVEs (Common Vulnerabilities and Exposures) have been addressed in the 5.7 codebase, particularly around SMTP command injection. download hmailserver 57 hot

  • Run installer as Administrator.
  • Choose database: built-in (MS SQL Compact) for small installs or external (MySQL/MariaDB/MSSQL) for production.
  • Configure service account and ports (SMTP 25, SMTPS 465 or 587; IMAP 143/993; POP3 110/995).
  • Set up DNS MX record pointing to server IP and ensure reverse DNS (PTR) exists for deliverability.
  • Create domains, accounts, and anti-spam/antivirus settings in hMailServer Administrator.

, which allows you to sync your email server with your existing Windows domain. Microsoft Marketplace Single Sign-On: hMailServer 5

Official Website: Navigate to the hMailServer downloads page. Official installer: Get hMailServer 5

Limitations & notes

  • hMailServer 5.7 is Windows-only.
  • No built-in DKIM signing (requires external tools or scripts).
  • GUI administration is Windows-only; remote admin requires the hMailServer Administrator client or web-based third-party tools.
  • Community-supported project; check activity and compatibility with modern Windows/.NET updates.

Here’s a quick breakdown: