Subject: Undeliverable: Leah los
From: <[email-masked]>
To: <[email-masked]>
Date: Thu, 27 Oct 2022 01:48:04 +0000

[https://products.office.com/en-us/CMSImages/Office365Logo_Orange.png?version=b8d100a9-0a8b-8e6a-88e1-ef488fee0470]
Your message to [email-masked] couldn't be delivered.
knut.terje.tuv wasn't found at tine.no, or the mailbox is unavailable.
niren.dsouza    Office 365      knut.terje.tuv
Action Required                 Recipient
Unknown To address

How to Fix It
The email address might be misspelled or it might not exist. Try one or more of the following:

  *   Retype the recipient's address, then resend the message - If you're using Outlook, open this non-delivery report message and click Send Again from the menu or ribbon. In Outlook on the web, select this message, and then click the "To send this message again, click here." link located just above the message preview window. In the To or Cc line, delete and then retype the entire recipient's address (ignore any address suggestions). After typing the complete address, click Send to resend the message. If you're using an email program other than Outlook or Outlook on the web, follow its standard way for resending a message. Just be sure to delete and retype the recipient's entire address before resending it.
  *   Remove the recipient from the recipient Auto-Complete List, then resend the message - If you're using Outlook or Outlook on the web, follow the steps in the "Remove the recipient from the recipient Auto-Complete List" section of this article<https://go.microsoft.com/fwlink/?LinkId=532972>. Then resend the message. Be sure to delete and retype the recipient's entire address before clicking Send.
  *   Contact the recipient by some other means, (by phone, for example) to confirm you're using the right address. Ask them if they've set up an email forwarding rule that could be forwarding your message to an incorrect address.

If the problem continues, forward this message to your email admin. If you're an email admin, refer to the More Info for Email Admins section below.

Was this helpful? Send feedback to Microsoft<https://go.microsoft.com/fwlink/p/?LinkID=717200>.
________________________________

More Info for Email Admins
Status code: 550 5.1.351

When Office 365 tried to send the message, the external email server returned an error stating that the recipient is unknown or the mailbox is unavailable. This error was reported by an email server outside Office 365.

If you or the sender can't fix the problem, contact the responsible party's email admin - Give them the error code and error message from this non-delivery report (NDR) to help them troubleshoot the issue. To determine who the responsible party might be, check the error for information about where the problem is happening. For example, look for a domain name like contoso.com. A domain name in the error might suggest who is responsible for the error. It could be the recipient's email server, or it could be a third-party service that your organization or the recipient's organization is using to process or filter email messages.

Although the sender might be able to fix the issue by correcting the recipient address, it's likely that only the recipient's email admin can fix the problem. Unfortunately, it's unlikely Office 365 Support will be able to help with these kinds of externally reported errors.

Original Message Details
Created Date:   10/27/2022 1:44:19 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        Leah los

Error Details
Reported error: 550 5.1.351 Remote server returned unknown recipient or mailbox unavailable -> 550 [email-masked]... No such user
DSN generated by:       OS4P279MB0541.NORP279.PROD.OUTLOOK.COM

Message Hops
HOP     TIME (UTC)      FROM    TO      WITH    RELAY TIME
1       10/27/2022
1:44:17 AM      iyng    mail.lsmindia.com       ESMTPSA *
2       10/27/2022
1:44:19 AM      mail.lsmindia.com       localhost       ESMTP   2 sec
3       10/27/2022
1:44:20 AM      localhost       mail.lsmindia.com       ESMTP   1 sec
4       10/27/2022
1:44:20 AM      mail.lsmindia.com       localhost       ESMTP   *
5       10/27/2022
1:44:20 AM      localhost       mail.lsmindia.com       ESMTP   *
6       10/27/2022
1:46:59 AM      mail.lsmindia.com       DB5EUR01FT051.mail.protection.outlook.com       Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    2 min, 39 sec
7       10/27/2022
1:47:00 AM      DB5EUR01FT051.eop-EUR01.prod.protection.outlook.com     DB3PR06CA0004.outlook.office365.com     Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    1 sec
8       10/27/2022
1:47:00 AM      DB3PR06CA0004.eurprd06.prod.outlook.com OS4P279MB0541.NORP279.PROD.OUTLOOK.COM  Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    *

Original Message Headers

From: Leah <[email-masked]>
Subject: Leah los
Date: Thu, 27 Oct 2022 03:44:19 +0200
To: Undisclosed recipients:;
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Subject: Leah los
From: Leah <[email-masked]>
To: Undisclosed recipients:;
Date: Thu, 27 Oct 2022 03:44:19 +0200

Hello. I am in your city. I know you a little. You and I have one mutual friend. If you want to get to know me better, go to my profile. See you soon.