Overall delivery rates across all industry sectors increased two percentage points to 95% in 2010, compared with 2009, according to the Harte-Hanks Postfuture Index. Unsubscribe rates decreased from .32% in 2009 to .19% in 2010, and bounce rates averaged 5%, compared with 7% in 2009, according to the June 27 report. The retail sector witnessed the highest delivery rates of all verticals featured in the index. Retail email delivery increased one percentage point to 98% delivered in 2010. Overall delivery rates across all industry sectors averaged 95% for 2010, an increase of two percentage points compared with the prior year. “Suppressing non-responders needs to be done,” said Liz Bross, VP of business development and digital interaction at Harte-Hanks. “It will affect rates, unsubscribes, and the sender's reputation with Internet service providers. Whatever you do, suppress your non-responders.” Get the full story at Direct Marketing News