Are You Deceived by Your E-Mail Delivery Rate? - eMarketer
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Are You Deceived by Your E-Mail Delivery Rate?

More than one way to miss the mark

August 7, 2009 | Advertising & Marketing | Email

E-mail marketers are used to seeing reported delivery rates around 95%. However, data from Return Path, an e-mail services company, indicates they may be missing the hard truth.

Hard bounces, which are admittedly rare, are not the only reason for nondelivery of e-mail. ISP and corporate filtering systems quietly weed out messages without informing the sender. Some messages end up in bulk or spam folders, while others are, according to Return Path, “completely missing.”

In all, Return Path found 79.3% of permission e-mail messages made it to inboxes in North America in the first half of 2009.

Average Inbox Placement Rate for Permission Commercial E-Mail in North America, First half 2009 (% of e-mails sent)

In the US alone, the inbox placement rate was slightly higher, at 82%.

It was even more difficult for e-mail marketers to reach business subscribers. Only 72.4% of business-to-business (B2B) e-mails were delivered to inboxes.

Average Inbox Placement Rate for B2B E-Mail in North America, First half 2009 (% of e-mails sent)

Successful delivery rates varied widely by ISP. In the US, Gmail subscribers were hardest to reach, with a 23% failure rate. Hotmail and MSN were close behind, at 20% each.

US E-Mail Marketing Nondelivery Rates, by ISP, First half 2009 (% of e-mails sent)

Why are failure rates so high—and why haven’t e-mail marketers noticed? One reason could be e-mail’s high ROI, which masks the problem.

“Many marketers are still resistant to implementing the best practices that make email deliverability more likely and more consistent,” wrote the report’s authors. “We still see programs with high frequency, low value and lack of segmentation.”

Welcome messages, efficient opt-out procedures and appropriate permission levels are all best practices recommended by Return Path.

Getting e-mails to their intended recipient is still only the beginning of e-mail marketing, of course. Messages must be relevant. For more information, see Why E-Mail Subscribers Unsubscribe.

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