I have an email list of about 400 subscribers that are very targeted. I'm not sure if they are quality leads, but I do know they are interested in a very specific niche. I don't have a website in this niche, but I am a member of an affiliate network that has 4-5 offers in this niche. None of their offers allow email marketing. How do I market to this list? Do I have to design my own landing page and then re-send everyone to the offer? Should I send out an email to my subscribers with a link to one of my domains and iframe the offer?