A study was conducted concerning how University of Vermont Extension employees used and perceived electronic mail as an intra-organizational communication tool. The results indicated that "broadcast" e-mail was less likely to be responded to than personalized e-mail, e-mail tone was considered generally more aggressive than telephone conversations, and sent messages have often been misinterpreted. A high majority of respondents reported that e-mail has made their work easier due to more efficient use of time, increased productivity, and 24/7 access, but that spam is an increasing problem leading to reduced employee satisfaction with e-mail.
Gary Deziel (Tue,) studied this question.