DOSBox - DOSBox is a DOS-emulator that uses the SDL-library.
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
vDosPlus - vDosPlus (formerly vDos-lfn) is a free general-purpose non-gaming DOS emulator running on Windows...
Newton Mail - Newton is a fully featured mail client available for Android, iOS, macOS and Windows.
FreeDOS - . creation tool just didn't feel up to the task. So, I created a new utility that may have better results.
Aqua Mail - Android Mail Client.