Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Out going email in Thunderbird just STOPPED. Getting error message.

  • 1 freagra
  • 1 leis an bhfadhb seo
  • 7 views
  • Freagra is déanaí ó sfhowes

jcraigm
jcraigm
more options

I have been using Thunderbird for the past 10 years. Two days ago I suddenly was no longer able to send emails out of any of my email accounts. This was the case on all my devices, phone, ipad and desktop. I changed nothing. I get this error:

Sending of the message failed. An error occurred while sending mail. The mail server responded: <steelvibrating@roadrunner.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that our email address is correct in your account settings and try again.

I have been using Thunderbird for the past 10 years. Two days ago I suddenly was no longer able to send emails out of any of my email accounts. This was the case on all my devices, phone, ipad and desktop. I changed nothing. I get this error: Sending of the message failed. An error occurred while sending mail. The mail server responded: <steelvibrating@roadrunner.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that our email address is correct in your account settings and try again.

All Replies (1)

sfhowes
sfhowes
  • Top 10 Contributor
more options

The error suggests you're trying to send from account X but through the smtp server that has account Y's credentials. Do you have separate smtp servers for each account, and is each account set to send on the smtp whose credentials match those of the sending account?

https://support.mozilla.org/en-US/questions/1350593