Excellent mail client from the makers of Firefox
Thunderbird is a desktop email client, an alternative to Microsoft’s Outlook, from the developers of Firefox.
Thunderbird is Mozilla’s award winning and free solution to manage your mail more efficiently. And there are many advantages of switching to it too. Unlike Mail for example, it can handle virtual identities and create on-the-fly addresses and it’s widely regarded as having one of the best spam filters out there. Most recently, it’s been updated with a slick tabbed interface to make managing your e-mail easier.