Thank you for reaching out to the community!
After looking into this I was unable to find an event email without click reporting. The best way to find this information is by visiting your event dashboard and clicking on the number of emails that are associated with that event. Then you will need to click on the number of bounced emails (see screenshot below).
If you are still experiencing this issue please email is at social_support(at)constantcontact(dot)com with a reference to this post and your username. We will be glad to look into this further.
Please let us know if there is anything else we can do for you.