Long story short, I have a 100k opt-in email list that hasn't been used. It came from an old site that a partner used to have and it does have many that are old emails. The good news is that I cleaned the email list up and about 48% was good, 20% was risky, and the rest were bad.
What should I do with these emails? I plugged them into Facebook Audience insights and it looks really high quality. I was thinking about using something like Sendgrid and promoting CPA products, but I am…