Chart - Sources Of Spam Complaints

Commercial emailers account for 70% of spam complaints, according to Return Path’s Email Intelligence Report for Q3 2012, released November 2012. 22% of spam complaints stem from other internet service providers (ISPs), 5% from internal email, and just 3% from bots and dynamic IP addresses. Despite sparking 7 in 10 spam complaints, marketing represents just 18% of email volume, and .03% of all unique domains seen by ISPs.

But that still-high volume of email suggests that consumers continue to sign up for email offers and mailing lists, whatever their protests about crowded inboxes. According to a just-released survey by Blue Kangaroo, a whopping 43% of US adults said more than half of new emails in their inboxes came from marketers (including daily deals, retail newsletters, and sales alerts). Still, just 1 in 4 complain that they really dislike all the marketing clutter they get, and 40% claimed to enjoy getting lots of marketing emails from favorite brands and deal services each week. Read the rest at MarketingCharts.