By default, all list subscribers can post messages to your class email list. However, you can also set up your class email list as an announcement tool, so that only you and/or your TAs can post messages to the list.
Note: If an individual not subscribed to the list attempts to post a message, it will be delivered to you, as the list owner, then discarded.
All messages sent to the list will now be re-directed to the list moderator for approval. As the list moderator, you have the option to approve or reject any message.
Note: To revert the list back to its default moderation options, on the Membership Management window, under Set everyone's moderation bit, including those members not currently visible, select Off, then click Set to save your changes.