Jon DeKeles says Eudora is perfect. Not that I don't trust Jon's judgment, but some people don't agree. PC Magazine panned its search features. Click for more . Others have beefs with its toolbars and help system.
Address book needs work too.
Ditto for the filtering system. Email is the top application and activity on the Web, and nobody is doing it right. We've only scratched the surface here. Luckily TalkBack doesn't require an email client, so use it to tell us your email beefs. I'll post the best responses beneath this article.