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

This thread was archived. Əgər kömək lazımdırsa lütfən yeni sual verin.

an receive emails but can't send them. " An error occurred while sending mail. The mail server responded 5.7.57 SMTP; Client was not authenticated to send anonymous mail"

  • 1 cavab
  • 1 has this problem
  • 2 views
  • Last reply by Matt

mvalentine9
mvalentine9
more options

Can't pull from desktop so will try and duplicate the alert

An error occurred while sending mail. The mail server responded 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM (BYAP08CA0057. namprd08. prod.outlook.com) Please verify that your email address is correct in your account settings and try again.

I have checked my email in settings and it is correct. That alert is so long and confusing I have no idea what it means. I have been using Thunderbird with my mac for nearly 4 years with no problems until now. Please assist if possible. Marianne

Can't pull from desktop so will try and duplicate the alert An error occurred while sending mail. The mail server responded 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM (BYAP08CA0057. namprd08. prod.outlook.com) Please verify that your email address is correct in your account settings and try again. I have checked my email in settings and it is correct. That alert is so long and confusing I have no idea what it means. I have been using Thunderbird with my mac for nearly 4 years with no problems until now. Please assist if possible. Marianne

Modified by Wayne Mery

All Replies (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

Are you using the exchange addon for Thunderbird or are you using the outlook server as an IMAP mail account. Two very different things.