"Domain Monitoring" add-on helps you to monitor domain names for your sites. 

This add-on is accessible from your iControlWP control panel, under the "Addons" section.

To review expiration dates for all domains on your account, click on the "Expiration Overview" button:

The all domain names on your account and their associated expiration dates will be displayed

The results will be ordered by expiration date - domains closest to expiration will be shown first.