I empathize 100%. Same communication issues. I resolved it primarily by using the "text agent" on my phone to cox - that is how I got some response - not necessarily that cox resolved the issues I had each time. It was like finding the "secret door"...and the response from widermouth makes no sense to me...if you do not use a ISP email then what? Carrier pigeon?
ISP stands for Internet Service Provider. When we're talking email marketing, ISP refers to the major email providers: AOL, Hotmail, Outlook, Yahoo, Gmail, Comcast, and so on.
Their customers are commonly your email recipients. It's the job of the ISP to protect their customers receiving unwanted or unsolicited emails.
if you do not use a ISP email then what? Carrier pigeon?
No, a email not provided by a ISP like Gmail or Yahoo or the others you mentioned except Comcast(which is a ISP). If you have a ISP email you are stuck using them unless you want to give up your email. Cox knows this and is one of the reasons they still offer email service.