If you want to make a filtering exception on the spam scan you can create a security group.
1. Go to Filtering=> Configuration
2. Click on Groups (on the left of your screen)
3. Click on Add (to create a group)
4. Enter the name of the group (e.g. exception)
5. Add the address(es) you wish to make an anti-spam exception to
6. Check the box "Disable spam
filtering" and validate.