http://www.dmnews.com/esp/topic/17947/ Articles tagged with Esp from Direct Marketing News Direct Marketing News web@haymarketmedia.com no Marketing software provider Hubspot has added functionality that effectively turns the company into an email service provider. http://www.dmnews.com/hubspot-adds-esp-functionality-targets-larger-enterprises/article/241653/ Fri, 18 May 2012 02:21:32 GMT Marketing software provider Hubspot has added functionality that effectively turns the company into an email service provider. Direct Marketing News