Getting back to the original post it is probably a combination of things that combine to lead to poor deliverability and poor views.
Creative that is triggering Spam Filters
Bad Reputation of your sending IP/domain
As you said you have cleaned your list already I would recommend that...
Run your email through a couple of spam scoring sites.
www.mail-tester.com is my favorite
Also, check the reputation of your ip at mxtoolbox and sites like senderbase.org and senderscore.org if you arent using a service.
Use the creatives the Network provides you and make sure that the traffic you send is approved for the offer you are promoting.
Sending banner traffic to an email campaign will result in you not getting paid and you account closed.
You should check your IP reputation at mxtoolbox or senderscore and also run the email you plan to send through a site like mail-tester to see if there is anything in your email that sets off a red flag
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