I am using Mozilla Thunderbird 0.3 as my email client, but it is unstable. I just installed the rpm for Fedora but it just won't start some times. Anyone knows why, or if there is a more stable release of this package for Fedora?
Try Thunderbird 0.4. I use it, and I don't have any problems like that. You can get it at www.mozilla.org/products/thunderbird/
-Ryan Newberry