Add a contact to your allowed sender list

On the home screen or in a folder, click the Options icon.
Click Security > Firewall.
In the General section, if the Enable checkbox isn't selected, select it.
In the Block Incoming Messages section, select one or more message types.
In the Exceptions section, select the Specific Addresses, Phone Numbers, or PINs checkbox.
Click Add.
Press the key.
Click one of the following menu items:
- Add Email Address
- Add Phone Number
- Add PIN
In the Enter new exception dialog box, type the contact information.
Press the key on the keyboard.
Press the key > Close.
Press the key > Save.