Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

Luke: Thunderbird 3 not sending my emails!

  • 2 个回答
  • 0 人有此问题
  • 178 次查看
  • 最后回复者为 Chris Ilias
  • 已存档

Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp.east.cox.net. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider.

Troubleshooting information

Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp.east.cox.net. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider.

Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp.east.cox.net. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider. == Troubleshooting information == Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp.east.cox.net. It does not support authentication (SMTP-AUTH) but you have chosen to use authentication. Uncheck 'Use name and password' for that server or contact your service provider.

所有回复 (2)

This forum is for Firefox support, not Thunderbird support. The best place to go would be http://www.mozillamessaging.com/en-US/support/

I have moved from outlook to thunderbird it imported and finished correctly i can not send mails to any of my contacts can u guys please help