tried them and their support team worked tirelessly to make it work with AtomicMailer but couldn't. Sometimes the email would arrive in spam or regular and other times never. each email i send is unique spin subject line but content is 50% spun.If your content isn't too blackhat, you may be able to get away with using Elastic Email, as they are a bit more lenient with cold emailing, and they are as cheap as AWS.. Combine that with Mailwizz on a server that allows spamming, and you might have some luck. Good luck with your endeavors!