Eudora (Penelope) Screenshot
STATUS: Solid Support Full Report »
Summary: Bravo! Mozilla is partnering with Qualcomm to pair Thunderbird's rendering engine with Eudora's interface. Previous versions of Eudora exhibited poor support for CSS and web-standards markup. However, as we would expect, Penelope is a model desktop client, supporting everything on our list and a whole lot more. We can only hope that other desktop-client developers will learn from the support Penelope offers without compromising security, speed or features.
How Eudora handled our acid test: