Only 15 percent of Americans say that the emails they get from marketers are useful, according to a recent report from Fluent. The research includes feedback from 1,900 consumers age 18 and older who live in the United States. The data revealed that only 7 percent of people say emails they receive are always useful, some 8 percent said these emails are frequently useful. However, 29 percent of respondents said marketing emails are only sometimes useful and a whopping 33 percent said these emails are rarely useful. A full 24 percent of consumers said that marketing emails are never useful.