E-mail marketers still need to monitor ISPs' e-mail blocking vigilantly, as the problem has worsened. Twenty-two percent of permission-based e-mail was blocked by top ISPs in 2004, up 3.3 percent from
the second half of 2003, e-mail management firm Return Path, New York, found in a new study.
Read the whole story at DMNews.com, March 22, 2005 »
