Google Group Message Approval
Some Google Groups at Avenues require moderation of messages from senders who are not members of those groups.
When a message arrives in a Google Group that is moderated, an email goes out to all Managers of that group requesting they approve or reject that message.
Managers have four choices when working with pending messages:
Approve - This approves just the messages that have been selected in the pending queue
Approve Infinitely - This approves this message, as well as all future messages from the sender, forever
Report Spam - This should ONLY be used for real SPAM. Unwanted messages should be rejected. Likely you will never use this functionality.
Reject - This rejects the message, DOES NOT send it to the group, and removes it from the pending queue