I haven't received anything here Dusty. Been with them for 12 years now as well using 6 addys. Odd that they cannot figure it out themselves.
I haven't been able to get email from Sprint thru my knology account. I signed up for new service and pre-ordered some phones early June. I received the order confirmation, a pre-order info email and then a "watch for great offers" email. Nothing since then.
I tried to setup a sprint online account and never received a confirmation email this week. I had them resend it several times and waited overnight. I changed it to my gmail account and it came in instantly. Seems they are having issues with Sprint.com addys. I had something similar with Netflix a couple of years ago - email stopped for a month with them and then started coming in again.
Think I may move all to gmail and forget it.--