hMailServer-5.7.0-B2530-x64 - VCRedist 2013/2019 ... - GitHub

Once you've downloaded the installer, follow these steps to install hMailServer 5.7:

Once installed, the software is not immediately secure. You must configure the following immediately:

hMailServer is a free, open-source email server for Microsoft Windows. It is used by internet service providers, companies, governments, and schools worldwide. It supports common email protocols like IMAP, SMTP, and POP3. It integrates easily with many webmail systems. It features built-in spam protection and antivirus integration to keep your inbox clean.