How do I send a group e-mail to my class? I tried several times and it doesn't work
First, you need to make sure that the course is published. How do I publish a course?
Second, you will need to select Students > All Students. How do I send a message to all course users in the Inbox as a student?
Canvas does not have email, so I suspect you are talking about a Conversations message. The only real barriers you should be encountering is if the course is in a term that is not yet open, or if your course is unpublished. If neither of these is the cause, then you will want to submit a ticket to Canvas Support.
There are ways around those two issues.......
If neither of these is available to you many schools lock these functions down with their term dates policies, then contact your Canvas Admin for support.
I hope these help,
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