Your may avoid sending review invitations to certain email addresses by adding them to the blacklist.
- Navigate to Invitations >> Unsubscribe List
Add a single email address of multiple email addresses separated by commas into the box, and click Add Emails.
Below is a list of emails that you have already added to you unsubscribe list. If you want to remove an email from the list (and be able to continue sending emails to that customer), click Delete next to the email address in the list.