Ubuntu, Debian, Mint, Pop!_OS
.deb package
Installs through the package manager and shows up in the app menu.
In a terminal, in the download folder
sudo apt install ./MepMail_1.0.1_amd64.deb
Updates: the app tells you about a new version and installs it from the tray, with your system password.
Download .debMepMail_1.0.1_amd64.deb
Fedora, openSUSE, RHEL
.rpm package
Installs through the package manager and shows up in the app menu.
In a terminal, in the download folder
sudo dnf install ./MepMail-1.0.1-1.x86_64.rpm
Updates: the app tells you about a new version and installs it from the tray, with your system password.
Download .rpmMepMail-1.0.1-1.x86_64.rpm
Any distribution
AppImage
One file, nothing to install. It carries its own WebKitGTK, so it is bigger (about 80 MB).
In a terminal, in the download folder
chmod +x MepMail_1.0.1_amd64.AppImage && ./MepMail_1.0.1_amd64.AppImage
Updates: the file updates itself, no password needed.
Download AppImageMepMail_1.0.1_amd64.AppImage