MailViewer is a GNOME application that allows users to read and decode .eml and .msg files (email files) without having to install any additional software or create an account.

It provides a graphical interface for easy navigation and rendering of email content, including attachments, HTML, and plain text.

Written in Rust with GTK4/libadwaita

• Open and view .eml or .msg files: Display the email's subject, sender, receiver, and content.
• Decode email attachments: View and/or save attachments.
• Support for HTML and plain text emails: Render emails in both formats (if available).

flatpak install --user io.github.alescdb.mailviewer

• Network : for fetching remote images (if the Show Images is checked, false by default), safe to disable if you don't wan't to see remote images.
• xdg-run/mailviewer (/run/user/<uid>/mailviewer) : for extracting attachments and opening it with associated program.

With cargo :

cargo build

With Makefile

make

(This is equivalent to cargo build)

make build

(meson build)

Icon is from Papirus Icon Theme

Feel free to contribute an original icon, I'm not a good designer :-)

• Vistaus : nl translation
• albanobattistella : it translation