We are getting blacklisted by some of our larger accounts when sending bulk emails. Unfortunately when we do a send it all goes out at the same time, versus being metered or staggered to enter a company's domain at differing times. Is it possible to easily make this happen? Cloning bulk emails and altering send times seems extremely inefficient. Other marketing automation providers I've worked with automatically staggered the send times when sending bulk emails to the same account. Advice?
A screenshot from one client, albeit a smaller one, is attached showing that numerous emails landed on their server at the same time.