Mails return as "We couldn't deliver your message."

Hello Nicholas,

thank you for your request. As it was posted in English with this being the German language forum, can you tell us which language you would prefer our support to be in?

As for your question, can you tell us the full error message appearing when you try to send a mail via your Outlook email account from Thunderbird?

We look forward to your reply!

Best,

Carlos

Vielen Dank für die Mitteilung. Gerne hier die Fehlermeldung in Textform:

"Couldn't install

We're sorry, we had a problem installing your Office program(s).

Is your internet connection working? Do you have enough free space on your main hard drive?

Please try installing again after you've checked the above."

Danke für die Hilfe!

Mike

Hi,
Thank you for posting in Microsoft Community
Based on your description, it seems that your unable to send a message on your Outlook account. We understand the importance of you being abl eto sent our this message. Let's work on this together in finding the best possible solution to this issue.
To better understand the situation, we would like to ask some questions, such as:

• What Email domain are you using? ex. Outlook.com, Live.com, Hotmail.com, etc.
• Are you using the Outlook application or the Outlook.com in the web?
• When did this issue started? What specific process did you do before this problem occur?
• What error message are you getting? send us a screenshot
  

We will be waiting for your response to our questions above to further isolate the issue.
Sincerely,
Leonardo_Y

Das Problem besteht, so wie in der ersten Anfrage beschrieben.

Eingefügt sende ich ein Beispiel. Der Absender lautet "*** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***".

Rücksprachen mit Vodafone, Microsoft und Office 2016 sagen aus: bei uns ist Alle O.k.

Browserwechsel ohne Erfolg, Virenscanner ESSET findet den Rechner sauber, zur Mailsendung Virenscanner deaktiviert-ohne Erfolg.

Liebe Leute, versucht doch bitte nochmal zu helfen oder sagt mir einfach es geht nicht.

Danke

Ihre Nachricht an:

-> L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***



wurde als unerwünschte Massen-Mail (SPAM) klassifiziert.

Subject: =?iso-8859-1?Q?-_eingef=FCgt_das_Bild_zu_Deiner_Verf=FCgung__Gru=DF_Klaus?=

Return-Path: <L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***>



Diese Nachricht wird in dieser Art abgewiesen und die Auslieferung der Nachricht wurde gestoppt!



Senden Sie Ihre Mail erneut als reine Textmail.





A message from <L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***> to:

-> L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***



was considered unsolicited bulk e-mail (UBE).



Our internal reference code for your message is 08647-10/N5TY9NY4Tkae



The message carried your return address, so it was either a genuine mail from you, or a sender address was faked and your e-mail address abused by third party, in which case we apologize for undesired notification.



We do try to minimize backscatter for more prominent cases of UBE and for infected mail, but for less obvious cases of UBE some balance between losing genuine mail and sending undesired backscatter is sought, and there can be some collateral damage on both
sides.





First upstream SMTP client IP address: [10.215.254.32] smtp-05.vodafone.de According to a 'Received:' trace, the message originated at: [47.64.142.119],

AthlonII ltea-047-064-142-119.pools.arcor-ip.net [47.64.142.119]



Return-Path: <L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***>

Message-ID: <L: *** Die E-Mail-Adresse wurde aus Datenschutzgründen entfernt. ***>

Subject:

=?iso-8859-1?Q?-_eingef=FCgt_das_Bild_zu_Deiner_Verf=FCgung__Gru=DF_Klaus?=



Delivery of the email was stopped!



Die Nachricht wurde isoliert unter:

N/spam-N5TY9NY4Tkae.gz

Hello Paul,



Thanks for your post in Microsoft community. Based on your description, we understand that you are facing such issue for the error code 0x80200049 and generally as per our understanding, this error occurred due to Local Global Address List Not Updating in
Outlook. But before go for any suggestions, we request you to kindly provide us entire screenshot for your error message, so we can help to assist you further.



Meanwhile for Office 365 Business account, we suggest you to login to
Outlook Web App and check if any error occurred at the time of sending email. If error occurred, kindly share screenshot for the error message.

For Outlook client issue, we would like to suggest you to try to start Outlook in safe mode (outlook /safe) and check the result. If it works in safe mode, issue is with extra Add-ins. Remove/disable all extra
Add-ins one by one to check the issue.



Further, we observed that your language is German and you posted your issue in O365 Business Online English language Team, so if you need the German language support, we request you to kindly update here, so we can arrange German language support for you.



Thanks and regards,

Ankita Vaidya