Incredimail

Indeed, some may say that email clients have become almost redundant these days, what with killer web interfaces like that of Yahoo! Mail Beta. The other (and more relevant) reason is that these days, hardly any email service provider gives away POP/IMAP access away for free to users. Notable exception - Gmail.

Despite this, I still use an email client (in certain circumstances) with whichever provider still gives me the liberty of that feature. I tried quite a few ones: Netscape (good integration with browser? somewhat), Eudora (don’t mention it), Microsoft Outlook Express (pass the vomit bag please; no link required) and Mozilla Thunderbird (well, all those extensions can come handy). But what wins my vote is the incredible IncrediMail.