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.

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Why am I getting this error?

  • 1 amsa
  • 1 yana da wannan matsala
  • 4 views
  • Amsa ta ƙarshe daga Bob

more options

An error occurred while sending mail. The mail server responded: 5.7.1 Authentication is required to send mail as <sub1d1rdf@verizon.net>. Please verify that your email address is correct in your Mail preferences and try again.

Among other things, I have no idea who <sub1d1rdf@verizon.net is. </p>

An error occurred while sending mail. The mail server responded: 5.7.1 Authentication is required to send mail as <sub1d1rdf@verizon.net>. Please verify that your email address is correct in your Mail preferences and try again. Among other things, I have no idea who <sub1d1rdf@verizon.net is.

All Replies (1)

more options

Perhaps your email settings for incoming (pop 3?) and outgoing (smtp) are not correctly set. The Thunderbird site for setting up a mailbox can be found here:

https://support.mozilla.org/en-US/kb/manual-account-configuration


Authentication settings are among those also, and there are 5 different methods to choose from. Perhaps, yous is wrong in the settings?