Adobe Acrobat 7 Professional - Manual (Page 286)

Sending review reminders
During the review, you may want to send participants a reminder of their approaching
deadline. While you can send an email message to a single participant by clicking an
email link in the Tracker, you can notify the entire group by using the reminder feature.
To send a review reminder:
1. In the Tracker, expand My Reviews.
2. Right-click (Windows) or Control-click (Mac OS) the PDF document in review, and then
choose Send Review Reminder from the pop-up menu.
3. In the email message, make changes as needed to the To and Subject boxes or in the body
of the email message, and then click Send.