Kanmail is an email client that functions like a kanban board, available for Mac, Windows, and Docker. It is developed using popular email providers such as Gmail, Outlook, and Fastmail, and is compatible with other email providers that use IMAP/SMTP. Kanmail is considered to be in beta and has been used as a primary email client for over a year. While the application is source available and can be downloaded for free, a license must be purchased for continued use. Kanmail offers features such as keyboard navigation, syncing with the server to display new emails, and a user-friendly interface for managing emails and contacts.
Key Features
  • Multi-platform support: Kanmail is compatible with MacOS, Windows, and Docker, making it accessible to users across different operating systems.
  • Email provider compatibility: Kanmail supports popular email providers such as Gmail, Outlook, and Fastmail, and can be configured to work with other email providers that use IMAP/SMTP.
  • Beta status: While Kanmail is considered to be in beta, it has been used as a primary email client for over a year, indicating its stability and usability.
  • Keyboard navigation: Kanmail offers keyboard navigation, allowing users to navigate between threads and columns using key commands.
  • Syncing with the server: Kanmail periodically syncs emails with the server, ensuring that the local copy is up to date with the server UID list.
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  • Infrastructure Cost Only: Our pricing structure focuses solely on infrastructure costs, with the software provided free of charge. view pricing
  • Up to 90% Cheaper than Commercial Apps: Enjoy significant savings with our platform, offering costs that can be up to 90% lower than traditional commercial applications.
  • Non-Linear Scaling: Unlike many solutions, our pricing doesn't scale linearly with the number of users, providing cost efficiency even as your user base grows.
Semut Advantage


Our platform seamlessly scales with your app needs for uninterrupted growth.


Centralized management in our platform optimizes spending on apps.

High availability

We prioritize continuous access to vital apps, even during disruptions.

Data sovereignty

Ensure data compliance with location-specific hosting options on our platform.

Kindly note that we do not offer support for modifying the open-source applications utilized in our platform. This is an open-source application, and any feature additions or removals should be directed to the community.
Frequently Asked Questions

Why bother with complicated installation processes when we have facilitated an effortless setup for you? Our platform already features a ready-to-launch app. All you need to do is click on 'install', and you're done! You can easily get started with our app with just one simple click.

Why go through the hassle of self-hosting when we already offer a ready-to-use app on our platform? All it takes is one click to install and voila, you're all set! You can easily launch the app with a single click, making your work far simpler

Kanmail does not serve as an open-source alternative to any particular software or service.


Waitlist for Kanmail

Joining our waitlist lets us notify you the moment our app is available. We value your interest and your patience while we work on making this ready for you to use.

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