hMailServer is an open source email server for Microsoft Windows. This page describes how to compile and run hMailServer in debug.
hMailServer needs a database to store its configuration and account data.
Running your own mail server requires diligence to prevent spam abuse and hacking attempts.
Download the .exe file (usually hMailServer-5.7.0-Bxxxx-x64.exe ).
To download and set up hMailServer , the most important thing to know is that version 5.6.8 is the final stable release. While the user-specified "5.7" likely refers to the ongoing 5.6.x development builds, official downloads and community support have transitioned primarily to the official hMailServer website GitHub repository Quick Setup Guide System Requirements .NET Framework 3.5
After you and install it, do not leave it on default settings.