In your Wattle course, locate the Navigation block on the top left corner.
In the Navigation block, find the course you want by clicking on the My courses listing. The course menu should be expanded, listing Participants, Reports, General, Topic 1, etc.
Click on Participants. You'll see a list of participants, such as lecturers, tutors and students.
To filter the role to students, click on the dropdown menu under Current role and select Student.
To send an email from your Outlook to all students, Click the Select all button,
Choose Send an email from the With selected users dropdown menu.
Compose the message in the Message Body area, using the editor to format it.
If the email looks correct, click Send
Helpful hint. If you would like to send an email to one individual student you can click on the email icon to the right side of the students name
Or, if you would like to send an email to a selection of more than one student.Click each of the individual Select checkboxes on the left side of each of the individual students names to whom you wish the email to be sent.
If you want to integrate the email message to the course site, you can also post the same message into the News Forum.