Retailers have started to wear out their welcome in customers’ email inboxes, forcing stores to rethink their spam strategies.Last year, the nation’s top 100 retailers by e-commerce revenue sent recipients an average of 177 emails apiece, up 87% from 2007, according to research by marketing-technology company Responsys Inc. Some of the most aggressive emailers — including Neiman Marcus Group Inc. — sent each recipient more than 500 emails apiece in 2011, Responsys said.Amid signs that the sheer volume of email is starting to turn customers off, some retailers have begun pulling back, reducing their mailings and fine-tuning their marketing tactics.
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