Desktop Webmail provides a generic mailto: handler and webmail config dialog that lets the user choose his preferred webmail provider on first run and through the desktops Preferences->Webmail facility.
When clicking on mailto: links on your desktop or in your browser desktop-webmail will take care that the user gets redirected to his webmail of choice’s compose webpage with the proper fields pre-filled in.
Currently default webmail providers are: Gmail, Hotmail, Yahoo and Zoho.
Currently Desktop webmail is available in Ubuntu 10.04 and ubuntu 10.10 repositories. You can install this application from Ubuntu software center or by entring the following command line:
sudo apt-get install desktop-webmail
Now go to Ubuntu menu applications–>Internet–>Desktop Webmail