Gdow

Gmail is a free email service created by Google that is revolutionary in the field because of its high capacity (2GB).

If you have a Gmail account and you usually receive messages pretty frequently, this notifier will come in handy.

Gdow includes several configuration tools for adapting its functionality to the likes and needs of each user. Specifically, the program has several notification modes (in a window, transparent animated form, or a pop-up balloon XP style) as well as the option to have it play a .wav sound.

It also allows you to set the time interval between checking mail and you can even check your mail directly from the icon in the task bar.