NewMail

This program uses a notification area (system tray) icon to keep you informed of the number of messages waiting in your inboxes. You can click on the notification area icon to pop up the window show below for a quick summary of the messages waiting. Currently the program supports POP3 access to mailboxes, which is the most popular type supported by ISPs and other hosted email accounts.

This program requires the .Net Framework 2.0 or later to have been installed on the system; this is already installed on many Windows XP systems and comes as a component of Windows Vista. The .Net Framework 2.0 can be downloaded from here