E-Mail Volume Increases, Testing Lags Behind

* 77 percent of online consumers say they receive too many e-mails (Forrester Research);

* 48.9 percent of the respondents said they’ve increased the number of monthly e-mail campaigns they send;

* 55.7 percent said they send one to three e-mails per month, 20.7 percent send four to five, 12.1 percent send six to eight, 5.7 percent send nine to 10, 3.4 percent send 11 to 15, 0.6 percent send 16 to 20 and 1.7 percent send more than 20;