Insights can notify you of changes to the set of accounts in a segment.
To enable email notifications for a segment:
From the segment profile page, select Options > Setup Email Alerts.
The Email Alerts page opens.
Select the changes to receive email notifications for.
You can enable email notifications for the following changes:
Each day the segment changes, Insights will send you a summary of the day's changes. You will receive an email from "Zuora Insights Notifications" that looks like the one pictured below: