Published on 3/16/18, The Relevancy Group analyzes six enterprise ESPs and documents market trends and mandates on vendor selection. This comprehensive buyer’s guide features executive data of 401 email marketing executives and details on six ESP vendors, including Adobe Campaign, Cheetah Digital, Epsilon Agility Harmony, MessageGears, Salesforce Marketing Cloud and Zeta Global. The report looks at what is most important to marketers in the selection process and review this data by industry and enterprise size.