Think you’re missing some email?

Quite possibly, you are…

Return Path found that the false-positive rate varied wildly at ISPs, from as low as 1 percent to as high as 46 percent. Among major ISPs, AOL gave e-mail marketers the most fits, with a 25 percent rate. AOL, struggling to hold onto its 28 million subscribers, has made its robust spam-fighting capabilities a key part of its marketing. AOL has said that spam is its top consumer complaint by far.

Interestingly, Earthlink, which has vied with AOL for top anti-spam credentials, had one of the lowest rates at 7 percent. Yahoo! took top honors with a mere 4 percent false-positive rate. MSN’s rate was just under 10 percent.

Return Path found catalogers most vulnerable, suffering a non-deliverability rate of more than 40 percent. Software also suffers a high number of undelivered e-mail, with nearly a third not getting through. In contrast, Return Path found clients in retail, software and non-profit industries had non-deliverability rates under 10 percent. []

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