E-Mail Volume Increases, Testing Lags Behind

The number of marketing e-mails being sent to consumers continues to increase, finds a recent survey. U.S. retailers and wholesalers will send 158 billion marketing e-mails this year, a number likely to grow 63 percent to 258 billion in 2013, Forrester Research predicts. But the increase in volume hasn’t translated into an increased reliance on testing.