Can't get or send emails from using Thunderbird

Have been using my email with Thunderbird for years on a Windows 10 PC, also with 2 ipads, Win 10 laptop and 2 iphones.  Cannot get or send emails from my on any device.  Desktop Error message:  (uses "Enter your password.  Sending of password for use did not succeed.  Mail server responded Authentication Failed."  

Ipad or Iphone error message (uses  "Account Error, No password provided for Cox.  please go to Mail Account settings and enter a password."

I have triple checked my passwords, all are accurate.  I CAN get and send emails from the website, but on NONE of my devices.

Any ideas?  Thunderbird and all devices are up to date.

Whenever this happened in the past, it would mysteriously clear up in a day.  Not this time!!! I have searched the internet.  HELP!

Thanks for your help!

  • If you're getting failures on different devices with different operating systems, more than likely the issue is with the server.  You can send an email to (webmail) to ask if there is an ongoing email issue.  Include  your Full Name and Complete Address in the email.  Let us know!

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