This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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. Please ask a new question if you need help.

550- ERROR OUTGOING

  • 1 reply
  • 1 has this problem
  • 8 views
  • Last reply by david

sandra61
sandra61
more options

Hello,

I'm with All nation security services inc, we use thunderbird to access our emails and for some reason we aren't able to send emails, we get a 550 error message. We need assistance with this, since this is what we use for all our staff to properly get our work done and respond to our client's and employees.

I can be reached to [removed phone# from public support forum]

Hello, I'm with All nation security services inc, we use thunderbird to access our emails and for some reason we aren't able to send emails, we get a 550 error message. We need assistance with this, since this is what we use for all our staff to properly get our work done and respond to our client's and employees. I can be reached to [removed phone# from public support forum]

Modified by James

All Replies (1)

david
david
  • Top 10 Contributor
more options

posting the complete text of the message may prove useful. Thank you. This often happens when the email id on the SMTP server does not match the email id of the sender.