Configure Signature for Blackberry emails
To change or delete your auto signature from your handheld, follow the directions below:
From the Messages screen, click the trackwheel and choose Options.
Select Email Settings and click the trackwheel.
Use the trackwheel to move the cursor to the Auto Signature dialog box and use the keyboard to enter a new auto signature.
Note: The handheld is configured to use auto signature by default. If you wish to use no signature, you can turn this feature off at this screen. There is some latency between when you make changes and when they take effect on the server. You may want to send yourself test messages to verify that your signature changes are working properly.
After you have made your changes, click the trackwheel and choose Save.
Note: Your auto signature does not appear while you are composing an email message on your handheld. Instead, it is appended to each email message you send. The auto signature is not appended to PIN or SMS messages