Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Cannot send messages, existing articles did not apply

  • 3 个回答
  • 1 人有此问题
  • 7 次查看
  • 最后回复者为 sfhowes

more options

Have used Thunderbird for years with no problems, just got these error messages, attached. I can receive emails but not send. Thank you for your help Jay

ISP- Comcast Firewall- Windows Defender Antivirus- Malwarebytes Premium ver: 4.0.4.49 Windows 10 Home 64 bit Thunderbird ver: 60.9.1 32 bit

Have used Thunderbird for years with no problems, just got these error messages, attached. I can receive emails but not send. Thank you for your help Jay ISP- Comcast Firewall- Windows Defender Antivirus- Malwarebytes Premium ver: 4.0.4.49 Windows 10 Home 64 bit Thunderbird ver: 60.9.1 32 bit
已附加屏幕截图

所有回复 (3)

more options

Your Comcast outgoing server is entered as smpt.comcast.net instead of smtp.comcast.net. Also, the settings should be: STARTTLS security on port 587, authentication = normal password, and User Name = email address.

Also, your att.net and bellsouth POP accounts should be sending on outbound.att.net on port 465, SSL/TLS, but there should be a separate smtp server for each one, with matching User Name and password entries (you already have 2 AT&T smtp servers). Select an account in the left pane of Account Settings, then select the matching smtp in the right pane in Outgoing Server (SMTP).

https://www.att.com/esupport/article.html#!/email-support/KM1010523

more options

Thanks for your help. I think I followed all your instructions correctly but I still get the same error message.

In Account settings, "Server Settings" the Outgoing Server (SMTP) matches up with the correct email address. In the "Outgoing Server (SMTP) Settings" the default server smtp.comcast.net does not have a name or email address in the "User Name" space, it is just blank. Is that correct?

I tried making one of the AT&T - smtp.att.yahoo.com the default server but still same error message. 

Any other ideas before I take it to the repair shop?

Thanks so much, Jay

more options

The Comcast smtp server should have the Comcast email address as the User Name, the authentication should be 'normal password', and the security should be STARTTLS on port 587.