Comcast was no help and sent me to Embarq.
Embarq told me that my IP address was blacklisted. If you know your IP address go to
http://www.mxtoolbox.com/blacklists.aspx and enter the IP address and see what you get.
If you are on a router, you will have to sign into the router and find the Router Status and get the address.
I am at a lost as to what to do next but will let you know when I find out.
Wish I had better news but it is further than I have been in weeks!!
Z