In the "Settings > Advanced > SSL Certificates" section, add a certificate (like a free one from Let's Encrypt) to secure your connections. Conclusion
However, there is a critical piece of information that often confuses new users: download full hmailserver 57
The software relies on outdated security standards like SHA1 and older versions of OpenSSL, which are considered insecure. In the "Settings > Advanced > SSL Certificates"
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: As an open-source project, you can download the complete source code from and compile it using Visual Studio 2019 2. Key Improvements in Version 5.7