The QuickMail block is a fast way to send emails to individual students, groups of students, or all the students in a class through Moodle. By default, only Instructors, Non-editing Instructors, Designers, and Teaching Assistants can send email via Quickmail.
Quickmail settings can be modified so students within a course site can send emails to each other and to instructors. This can be useful for group project work.
Configuring Quickmail settings to allow students to send email