Mozilla Thunderbird Portable
Mozilla Thunderbird Portable is the popular Mozilla Thunderbird email client packaged as a portable app, so you can take your email, address book and account settings with you. Portable Thunderbird is the safe, fast email client that's easy to use. It has all the same great features as regular Thunderbird including quick message search, customizable views, support for IMAP/POP, or RSS support. Plus, it leaves no personal information behind on the machine you run it on, so you can take your email and address book with you on your iPod, flash drive or other portable storage device.
This portable is a fully functional package of Mozilla Thunderbird optimized for use on a USB key drive. The now official MozDev project has added some specially-selected optimizations to the portable version that make it perform faster and extend the life of your USB key, and has also added a specialized launcher that will allow most of your favorite extensions to work as you switch computers.
This new version lets you install Thunderbird on a USB stick. You can download the file, which occupies about 7.1 MB and install it in your memory, she herself will tell you the path to install, but you can change the you want. This will create a folder called Thunderbird Portable where all information is stored and where you will find this application.
It is available in English, but if you want another language, you can simply install a dictionary in this language. From now on Thunderbird works just like normal. Mozilla Thunderbird Portable Unfortunately this only works with Windows, Linux and Mac are out of its holder.
The license of this software is Freeware, you can free download and free use this email client software.