I have tested hundreds of Safelist and Mailers over the years. The Mailers listed below consistently deliver opt-ins and paid signups on a regular basis, even as a free member. However, I did take the Lifetime membership at Herculist so I can mail the entire list every day of over 86,894+ members. Eventually, I will upgrade at all of the Safelists below as they continue to deliver sales and help me grow my list. Enjoy!