Capabilities/moodle/site:sendmessage
From MoodleDocs
- This allows a user to send messages to any other user.
- This capability may only be applied in the system context.
- The default Authenticated user role has this capability set to allow.
Note: You are currently viewing documentation for Moodle 3.4. Up-to-date documentation for the latest stable version of Moodle is likely available here: Capabilities/moodle/site:sendmessage.