If you don't like Yahoo, switch to a different email provider. There are many free email providers. Gmail, Proton, Icloud Mail, MS Outlook, etc. Cox can't/won't fix any issue with Yahoo email. Any issues you have should be directed at Yahoo. Cox is now out of the email business. The cost of service for them wasn't worth the value to the general customer because few people still use their ISP's email. Same reason why personal webspace isn't offered anymore. Once Facebook came around, most stopped using it. As for Mcafee, Cox did you a favor. Mcafee is a horrible AV. You don't even need AV anymore since Windows 10 and Defender.