Your BlackBerry smartphone provides a way to stay connected to your email wherever you can get a wireless signal. All incoming events on the BlackBerry, like phone calls, email and messages trigger a notification sound letting you know that you have a new message. If you get a ton of emails, or you get emails at all hours of the night, these tones can be more intrusive than helpful. To turn these notifications off, you will have to alter the profile settings on your BlackBerry device.
Select the speaker icon on your home screen. The icon is labeled as “Sound and Alert Profiles.” Tap the profile for which you want to change the email notification. This will also make it the current profile. Tap the speaker icon again and select “Change Sounds and Alerts” from the short menu that appears.
Choose “Sounds for Selected Phone” from the list of options. Select “Messages — Notifiers” from the new menu that appears, and then “Email” from the next menu.