The cost for email marketing services from the best email marketing agencies can vary widely, depending on a number of factors that influence email marketing agency pricing. When it comes to an email marketing service, prices for email newsletters services can change depending on the type of email blast service provided, the number of emails to be sent, email blast service management and the complexity of the data used in email newsletters services. The cost for the best email marketing service offered by top email marketing companies can also change depending on pricing structure for online email marketing. The cost per project for top email marketing services may vary, but you can expect to pay between $300 and $2,000 per month for email campaign services from a top email marketing service. The costs are similar if you perform online email marketing yourself but working with the best email marketing service provider guarantees top email marketing services.