To test that your server is functioning correctly, you can use an email client like Thunderbird, Outlook, or the free Foxmail client. When configuring your client, you would typically use:
: Enter your official domain name (e.g., yourcompany.com ).
Generate a DKIM key inside hMailServer ( Domains > Your Domain > DKIM ) and paste the public key as a TXT record in your DNS settings to sign outbound emails cryptographically. Troubleshooting Common hMailServer 5.7 Issues
Downloading and Installing hMailServer hMailServer is a free, open-source email server for Microsoft Windows. It supports standard email protocols including , SMTP , and POP3 , making it a popular choice for ISPs, companies, and schools looking for a flexible, self-managed mailing solution. Current Version Status download full hmailserver 57
Given this status, 5.7 is best suited for —not for production email servers.
SMTP (essential for server-to-server mail delivery) Port 110: POP3 (unencrypted user mail retrieval) Port 143: IMAP (unencrypted user mail retrieval)
Built-in support for Microsoft SQL Server, PostgreSQL, MySQL, and a native compact database engine. To test that your server is functioning correctly,
If your Internet Service Provider (ISP) blocks residential port 25, navigate to the tab and enter your ISP's SMTP relay host details under Relay server . Step 4: Network and DNS Infrastructure Requirements
After installation, you need to perform the basic setup to start sending and receiving emails.
This includes both the Server (which handles the mail traffic) and the Administrative Tools (the GUI used to manage domains and accounts). Troubleshooting Common hMailServer 5
hMailServer is an excellent choice for businesses and developers who need a local email server without the heavy cost of Microsoft Exchange. Version 5.7 focuses on improving security and compatibility with modern Windows environments. It supports all standard email protocols, including POP3, SMTP, and IMAP4, making it compatible with almost every email client on the market, such as Outlook, Thunderbird, and Apple Mail. Key Features of hMailServer 5.7
While exists as a community-maintained beta, the official developer has halted active development for the project. The stable production-ready version remains 5.6.8 (Build 2574). Official Download Information
| Feature | hMailServer 5.7 | MailEnable Free | Zimbra | Microsoft Exchange | |---------|----------------|-----------------|--------|-------------------| | Platform | Windows only | Windows only | Linux/Windows | Windows only | | Cost | Free (AGPL) | Free tier available | Open-source edition | Commercial | | Protocols | IMAP, POP3, SMTP | IMAP, POP3, SMTP | Full suite + groupware | Full suite + groupware | | Webmail | Requires PHPWebAdmin (basic) | Basic webmail | Full-featured | Full-featured (OWA) | | Active development | No (project halted) | Yes | Yes | Yes | | Best for | Small to medium Windows environments | Small businesses | Enterprise | Large organizations |