There are several active threads on this forum regarding the many different problems that users are having with Cox email. Especially since the server changes that Cox implemented on 24 April 2019.
I'm sure that everyone is hoping that the Cox IT people will consider all the information in the postings and do some successful troubleshooting on their end. I understand why they follow the script and ask users to check setup parameters, delete and reinstall accounts and change pass words. However, since so many people have reported that those steps did not solve the problem they need to take the issue more seriously and fix the issues on their end.
I just noticed that all my inbox emails older than 3/24/2019 are missing. Have you noticed any similar problems?