Isotope Mail Client

Welcome, this is the homepage for the Isotope Mail Client official demo application hosted at

Isotope Mail Client is a free open source webmail application built with a microservice architecture vision in mind. You can find more details about the current application status and features here.

The demo hosts the latest development version of Isotope Mail Client and can be used to test the newest features under development.

Please, login to the application only using demo purposes mail accounts that don't contain real information and content that can be lost without consequences.

Demo credentials

You can use the following credentials to access the application:

  • Host: isotope
  • User: isotope
  • Password: demo
  • SMTP Port: 25
  • SMTP SSL: No