To help match the popularity of Firefox 1.5, Mozilla has released Thunderbird 1.5 which includes many enhancements. Not only does Thunderbird manage your emails, but it will also keep track of your RSS Feeds. It will also check the spelling as you type and helps protect you from phishing attacks. Like its sibling Firefox, Thunderbird now has the ability to use streamlined updates so that you do not have to reinstall the product for each update. Good thing Microsoft is overhauling Outlook in the Outlook 12 release otherwise they might be in for some stiff competition.
Download Source: Mozilla