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Cannot send messages. Response from Thunderbird is "login to server.cox.net failed".

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Response from Thunderbird is "login to server.cox.net failed". I have validated all of the ISP server setting and attempted to send with security off. I have changed the ISP password for the mail account. I am still unable to send

Response from Thunderbird is "login to server.cox.net failed". I have validated all of the ISP server setting and attempted to send with security off. I have changed the ISP password for the mail account. I am still unable to send

Saafara biñ tànn

You might have success sending by using smtp.cox.net on port 587, STARTTLS security, authentication = normal password, User name = part of your address before the @.

https://support.mozilla.org/en-US/questions/1168844#answer-989567

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Saafara yiñ Tànn

You might have success sending by using smtp.cox.net on port 587, STARTTLS security, authentication = normal password, User name = part of your address before the @.

https://support.mozilla.org/en-US/questions/1168844#answer-989567