GitHub - kalyan02/Simple-SMTP-Server: Simple python smtp server with web view for viewing incoming mail
GitHub - georgjf/SMTPtool: A slim .NET based UI tool to communicate with SMTP servers and to quickly compose, mail and remail messages
GitHub - postalserver/postal: ✉️ A fully featured open source mail delivery platform for incoming & outgoing e-mail
![10 software to make your own SMTP server for email marketing - inGuide | Digital Marketing, Online Business & WordPress 10 software to make your own SMTP server for email marketing - inGuide | Digital Marketing, Online Business & WordPress](https://inguide.in/wp-content/uploads/2021/02/mailcow.png)