Really? Name any of the top 10 email providers that have stores, or a responsive 800 number for email support. I'll give you Apple, but they are the clear outlier. MS, Google, have stores, but not with email support, and questionable phone support at best for any non enterprise product.
AT&T? I don't have a list of top 10 email providers, but them and Verizon and Yahoo have all had people report social engineering attacks against them to gain access to accounts.