Kanmail for Linux is built using an Ubuntu 16 Docker container and is officially supported on Ubuntu systems. Kanmail has been tested with the following Linux distributions.
Confirmed working on Ubuntu 18/20, Mint 19, elementaryOS 5.
May require webkit2 if needed:
sudo apt install libwebkit2gtk-4.0
Note for elementaryOS: only works when run as root, needs investigation.
Not working, issue with libpng12. Has the same libpng16 installed as Ubuntu but doesn't work. Needs investigation.
Confirmed working on Fedora Workstation 32.
Confirmed working on Manjaro 20 XFCE desktop.