This function will help you check mails easier. For example, you may define a label named "Important" in red, then you can mark mails by using this mark. The operation is as follow:

1.Select one or several mails from the mails list box.

2.Right click the mouse to pop up the pop menu.

3.Select a sub item under the Change Label menu item.

Remark:

1.You may sort mails by label.

2.Label will not be sent out with outgoing mails.