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.

Cari Bantuan

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.

Pelajari Lebih Lanjut

Receiving error message although email is delivered:"The following addresses had permanent fatal errors ----- <_ _ _ @_ _ _ .com> (reason: 550 Host unknown)"

  • 4 balas
  • 1 memiliki masalah ini
  • 29 kunjungan
  • Balasan terakhir oleh Matt

more options

I moved to a new pc, downloaded and installed Thunderbird 31.4.0. ALl is well except that I regularly receive the following error notice. It appears that emails identified are actually delivered (actual address removed from below).

"The original message was received at Wed, 11 Feb 2015 13:03:51 -0500 from atl4mhob10.myregisteredsite.com [209.17.115.48]

  ----- The following addresses had permanent fatal errors -----

<_ _ _@_ _ _._ _ _>

   (reason: 550 Host unknown)
  ----- Transcript of session follows -----

550 5.1.2 <_ _ _@_ _ _._ _ _>... Host unknown (Name server: _ _ _._ _ _gov: host not found)

Reporting-MTA: dns; atl4mhfb03.myregisteredsite.com Received-From-MTA: DNS; atl4mhob10.myregisteredsite.com Arrival-Date: Wed, 11 Feb 2015 13:03:51 -0500

Final-Recipient: RFC822; _ _ _ @_ _ _._ _ _ Action: failed Status: 5.1.2 Remote-MTA: DNS; _ _ _._ _ _ Diagnostic-Code: SMTP; 550 Host unknown Last-Attempt-Date: Wed, 11 Feb 2015 13:03:51 -0500"

I moved to a new pc, downloaded and installed Thunderbird 31.4.0. ALl is well except that I regularly receive the following error notice. It appears that emails identified are actually delivered (actual address removed from below). "The original message was received at Wed, 11 Feb 2015 13:03:51 -0500 from atl4mhob10.myregisteredsite.com [209.17.115.48] ----- The following addresses had permanent fatal errors ----- <_ _ _@_ _ _._ _ _> (reason: 550 Host unknown) ----- Transcript of session follows ----- 550 5.1.2 <_ _ _@_ _ _._ _ _>... Host unknown (Name server: _ _ _._ _ _gov: host not found) Reporting-MTA: dns; atl4mhfb03.myregisteredsite.com Received-From-MTA: DNS; atl4mhob10.myregisteredsite.com Arrival-Date: Wed, 11 Feb 2015 13:03:51 -0500 Final-Recipient: RFC822; _ _ _ @_ _ _._ _ _ Action: failed Status: 5.1.2 Remote-MTA: DNS; _ _ _._ _ _ Diagnostic-Code: SMTP; 550 Host unknown Last-Attempt-Date: Wed, 11 Feb 2015 13:03:51 -0500"

Semua Balasan (4)

more options

well you have redacted the name of the server issuing the error. So all I can cay is contact them and ask why they are sending these messages.

What is happening is your mail server is reporting back that it can not find the domain your sending mail to.

This is not a Thunderbird issue. It might however be indicative of a poor hosting choice.

more options

Well... I though that was ethically appropriate. So I get these messages regularly now, but from many different servers. I had no such problem until the new install, and have not changed any of my service providers. FOr what it is worth, from the last notice received:

"The original message was received at Wed, 11 Feb 2015 13:03:51 -0500 from atl4mhob10.myregisteredsite.com [209.17.115.48]"

"Host unknown (Name server: fireca.gov: host not found)"

more options

... also, as I indicated, the emails are actually being delivered, so the notices are in error.

more options

how can I be more clear. The mail server can not resolve the address. Thunderbird is not involved here. The mail server is. If it is borked, please contact your provider as to why. It sounds to me like your provider has screwed up their DNS so the mail server can not access it at certain times. Perhaps they are oversubscribed.

Go here http://www.dnsstuff.com/ and feed it myregisteredsite.com. Perhaps the issue will appear on their tests.