Avoid this service like the plague! They are non responsive. They will block your email campaigns for absolutely no reason. They have certain thresholds a customer must reach and I destroyed every threshold! They even sent me an email and yet they still withhold the campaign. They will send it at a time they choose and not the customer. Also, they will not respond to any emails or tickets. It has been 3 weeks. I refuse to work with this company and I advise EVERYONE to do the same. There is hundreds of other options that do the same thing MUCH BETTER!