Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

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

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by sfhowes

more options

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

Chosen solution

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

Read this answer in context 👍 1

All Replies (2)

more options
more options

Chosen Solution

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