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I use Thunderbird on my PC and also cox mail on my ipad/iphone/imac but last week as of July 10th it stopped working. I can't check it from all these as well as online on cox webmail. I login and it just brings me back to the log in screen or it will bring me to this https://webtop.west.cox.net/cox/goerror with a big printed letters saying Oops! We can't find that page!
When I log into my thunderbird it tells me:
Sending of password did not succeed. Mail server pop.cox.net responded: mail storage services unavailable, wait a few minutes and try again. Login to server pop.cox.net failed.
My iPhone/iPad now tells me: The User name or password for "imap.cox.net" is incorrect.
Sounds like there is something wrong with your email account itself. Some kind of provisioning error, which means something wrong with the coding in Cox's system. Can you try to reset your password through internet tools? Or maybe even create another account to test with. Then if nothing else you can ask them to forward your email from old to new email while they work it out. Might need a ticket and a day or two, but thats just a guess.