There are three email preferences (Courtesy Notices, Critical Announcements, and Upcoming Events) that tie to the choices for the Communication Type when you need to use the Communicate button in Reports.
Instructions
Navigate to the Reports tab
Select the User/Roster Reports tab and select a report and click to generate
Click on the toolbar's Communicate (two people) icon
Use the drop-down Communication Type menu to select the most appropriate type
Note:
You can only select one Communication Type per report.
Fill out the rest of the Email fields
Sending Address: The email address the mass email will send from
Communication Type: Select the most appropriate communication type
Email Template: Select a template for the email
Recipient(s): Enter users' email addresses
CC: Carbon-copy users to the email
Subject: Subject heading for the email
Add Attachment: Drag-and-drop files into the field
Message: Content of the email
Click Send on the bottom-left of the page