Thunderbird is the email companion to Firefox. Thunderbird makes emailing safe, fast, and easy with the implementations of features such as intelligent spam filters, a built-in spell checker, extension support, and more. Thunderbird is designed to boost users' productivity. There are no hassles of wading through ads and junk mail.
Emailing should be efficient and convenient. So Thunderbird uses open,industry leading standards. Thunderbird provides very effective tools for detecting junk mail. These tools analyze e-mail and identify those that are most likely to be junk. A user can automatically have junk mail deleted or it can be put in a specified folder for later inspection. If a user really wants to keep some "special offers" like DVDs of 1940's westerns for only $29.99 each - then the simple click of the big "Not Junk" button tells Thunderbird not to get rid of those emails.
Thunderbird also provides corporate and government level security features such as S/MIME, digital signing, message encryption, support for certificates and security devices, in case you are really into securing your data. Thunderbird also supports user level features, like HTML mail, IMAP/POP support, quick search, a smart address book, handling of return receipts, address completion, import tools, and support for multiple email and newsgroup accounts. Thunderbird reads RSS feeds like threads of emails.
Like FireFox, Thunderbird has many downloadable Themes and Extensions, which make its functionality and appearance virtually limitless. Apart from the use of themes, users can control the appearance of Thunderbird with customizable views, including a new three-column view, and Mail Views, which make sorting emails a snap. The toolbar is also easily customizable; using simple drag and drop to add an icon. Icons aren'tthe only items that can be dragged; spaces between each icon can be adjusted also for users who wish to keep it simple and uncluttered.
Thunderbird is much more secure from viruses than Outlook Express, because it deter the spread of worms and viruses by not allowing scripts to run by default. Thunderbird also takes up much less hard drive space than Outlook. Thunderbird can also save the user disk space by restricting certain messages larger than a specified size to be downloaded. Thunderbird also has the option of leaving emails on the servers where they are more secure.
With the addition of the free Mozilla Calendar, or the stand-alone version called Sunbird, the FireFox/Thunderbird combo can easily replace Internet Explorer and Outlook Express. The calendar allows users to organize their lives easily with the ability to%0Aschedule task and reminders. It lets the user schedule an event or task%0Afor a specific date and features an alarm for the event or the ability%0Ato keep it private. The calendar options are customizable allowing the%0Auser to control several aspects, including the alarm settings.Thunderbird and FireFox both can be run from removable media - like a CD-Rom or USB stick, so users can take their internet programs with them.