Nostalgic users of the classic Eudora will be glad to get their hands on the latest outing, Penelope. This updated version manages to mix in iconic Eudora features with many things from Mozilla's Thunderbird. You'll immediately recognize the Eudora icons and the typical Thunderbird interface. The mail client is easy to install and to set up your own account. You can create filters to manage incoming mail and use Mozilla's search as you type feature to skip through your emails.
Penelope also includes an RSS reader, once again based on the one from Thunderbird. It worked smoothly importing new feeds. The preview window lets you read feeds directly from Penelope instead of opening them up in your browser. Another neat feature of the mail client is that you can now install all Thunderbird add-ons to it. The address book has also been improved and you can easily import or export it to various formats.
Despite still being a bit unstable (Penelope is still in development after all), the Eudora mail client provides a good alternative to send and receive mail. Qualcomm Penelope developers seem to have succeeded in blending the strengths of both Eudora and Thunderbird into one.
Eudora is a mail and news application based on the open source Thunderbird client from Mozilla. It's *not* our intention to compete with Thunderbird; rather, we want to complement it.
We are committed to both preserving the Eudora user experience and to maintaining maximum compatibility, for both developers and users, with Thunderbird. It is our goal to build a single development community around Thunderbird and Eudora, so that both mailers advance faster than they previously have.
Whereas "Eudora" is a branded version of Thunderbird with some extra features added by the Eudora developers, "Penelope" is an extension (also called an "add-on") that can be used with either Eudora or Thunderbird. The Eudora installer includes the corresponding version of Penelope along with it so there is no need to install Penelope if you are installing Eudora. Most features in Penelope can be accessed when used with Thunderbird, but there are a few that require Eudora in order to work correctly and it's not something that gets tested.