The easy way to check for whether or not you have an email that has opted out of an email campaign simply follow these directions:
1. Click contacts. Go to the Search bar and put in the last name of who you need to search into the search bar:
1 A. Then choose the name that you have in your contacts that you are searching for in your list:
2. Then choose the link to the persons name you search for in the search. Click on the email you want to look at that you sent:
3. Once you've clicked on your name, it will show you the emails that have been sent to them and the status of what they've done:
If it doesn't say opened, then you will see bounced or vice versa.
This is how you can check the status for received emails to any of your contacts on your email list.