There is a bug in Quickmail which can result in some or all Quickmail email messages not been delivered. This means that the plugin is not currently usable.
IT have reported this to the third-party developer and are looking at possibilities to fix this.
A News forum/Announcements forum is added to all Moodle modules. Staff can post to the News forum/Announcement and students cannot reply. This allows for simple one-way communication with enrolled students and staff members. The message is posted to the Forum immediately and is also emailed to all users enrolled on the module after the 30 minute delay elapses.
Group forums can be set up to facilitate communication from the lecturer to each of the collaboration groups. Students can reply to this forum messages.
To protect students’ personal information, students are added to hidden groups to manage resubmissions, extensions of assignments and assessments in Moodle.
To contact students in a hidden or only see own membership group, you can send a Moodle message to each student.