The grant suggestion email from Donor Central is only sent to the primary email address on the profile record. However, a client can chose to send the email to another email address if they choose.
The setting needs to be changed under Site Configuration
1. Click on Admin Portal 2. Under Site Administration, click on Email Administration 3. The setting that will need to be changed is labeled "Send Additional Confirmation" 4. Change this to yes and then you will be prompted to enter an additional email address for confirmation