New Announcement: This will “mark as read” all emails that have the subject “New announcement:”
New Assignment: This will “mark as read” all emails that have the subject “New assignment:”
Graded: This will “mark as read” all emails that have the subject “Graded:”
Due tomorrow: This will “mark as read” all emails that have the subject “Due tomorrow: “
Returned: This will “mark as read” all emails that have the subject “Returned”
UseGravity "A New Video Has Been Uploaded": will "mark as read"