Because an e-mail notification icon appears whenever you receive new e-mail, it's tempting to stop work and open new messages immediately. But you can turn off the notification and then check your e-mail when it's convenient for you. Here’s how:
1. In Microsoft Office Outlook 2007, click Tools, click Options, click E-mail Options, and then click Advanced E-mail Options.
2. In the middle of the dialog box, clear the Display a New Mail Desktop Alert check box