2 Replies Latest reply: Feb 2, 2013 1:21 PM by Linc Davis
lliissaa Level 1 (0 points)

I get this mesage when I try to send an email to a potential employer.  I am writing a thank you note to them and it keeps coming back undelivered with the following message:


Action: failed

Status: 5.5.0

Diagnostic-Code: smtp;550


What does it mean?  Can I overcome this problem?

Thanks for any help.

PowerBook, OS X Mountain Lion (10.8.2)
  • Courcoul Level 6 (12,970 points)

    If you are using Mail as client, bring up the bounced message then select View > Message >Raw Source. A window will pop up containing the message as it came in, raw text - no interpretation. If that doesn't clue you to what's wrong, copy/paste the HEADER back here for further diagnosis.


    Thunderbird/Outlook/Eudora all have similar means of displaying the raw message.

  • Linc Davis Level 10 (192,529 points)

    It's a message from the mail server that the recipient's address doesn't exist or isn't accepting mail.