February 24, 2016 By John Bonini About a month ago, a friend and fellow Boston marketer and I got into a discussion about the merits of customer marketing, and more specifically, how email plays a role. Casey Hogan was frustrated, as she had just received her tenth—tenth!—upsell email from a brand that she had been using for four years. Obviously annoyed, she took to Twitter in search of empathy. CX in need of upgrade:1 Use code for 1st X free…