If you already moderate all messages in your group, you can turn the Spam Filtering off. All messages that are identified as potential spam will be delivered to the regular Pending Messages folder.

To turn Spam Filtering off:

1. From the list on the left, click Management.
2. Click Messages under Group Settings.
3. Click Edit next to Posting and Archives.
4. Select Off under "Spam Filtering".
5. Click Save Changes.