Subject: Undeliverable: [EXTERNAL] Ta med kollegorna på en inspirerande dag i Danmark - Upplev Helsingör

From: <[email-masked]>
Date: Tue, 30 Sep 2025 11:07:18 +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.
kreinsson wasn't found at rccl.com, or the mailbox is unavailable.
6_4764_709084_bounce    Office 365      kreinsson
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:   9/30/2025 11:00:40 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        [EXTERNAL] Ta med kollegorna på en inspirerande dag i Danmark - Upplev Helsingör

Error Details
Error:  550 5.1.351 Remote server returned unknown recipient or mailbox unavailable -> 550 [email-masked]... No such user
Message rejected by:    Mrmrelay02.na.rccl.com

Notification Details
Sent by:        BN0PR01MB7101.prod.exchangelabs.com

Message Hops
HOP     TIME (UTC)      FROM    TO      WITH    RELAY TIME
1       9/30/2025
11:00:40 AM     [127.0.0.1]     post.nuhet.se   SMTP    *
2       9/30/2025
11:00:40 AM             post.nuhet.se           *
3       9/30/2025
11:07:09 AM     post.nuhet.se   relay.mimecast.com      STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384)       6 min, 29 sec
4       9/30/2025
11:07:13 AM     us-smtp-inbound-delivery-1.mimecast.com BN3PEPF0000B370.mail.protection.outlook.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   4 sec
5       9/30/2025
11:07:14 AM     BN3PEPF0000B370.namprd21.prod.outlook.com       BN9PR03CA0347.outlook.office365.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   1 sec
6       9/30/2025
11:07:15 AM     BN9PR03CA0347.namprd03.prod.outlook.com BN0PR01MB7101.prod.exchangelabs.com     Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    1 sec

Original Message Headers

Authentication-Results-Original: relay.mimecast.com;    dkim=none;      dmarc=none;
        spf=pass (relay.mimecast.com: domain of [email-masked]
 designates 85.118.203.81 as permitted sender)
 smtp.mailfrom=[email-masked]
From: NW Production <[email-masked]>
To: [email-masked]
Reply-To: [email-masked]
Subject:
        [EXTERNAL] Ta med kollegorna på en inspirerande dag i Danmark - Upplev Helsingör
Date: Tue, 30 Sep 2025 13:00:40 +0200
 H685ArEdw1y9J4KCAn9W0+Lj5hlof7nPlXvPR1tSO3qlH2SdEVjW4qiWM7pM/qnV+U8Ec2XApz+m/6ycKbCQK5zPlCzPXZTT6IBjoU3/RGcg5BLFrrF9mRyGtCO+B0JfCmtp+Veo1u0YhCNHulqt27ZXt3nPW3WTUlLqU64poeEI/Mmtq8LgTMU7LRTitX8e4/94MJnzI8LZijRJW00wEjXpqdQBgzHI+EzmXOaTDwA=
X-Forefront-Antispam-Report:
        CIP:170.10.128.131;CTRY:US;LANG:sv;SCL:-1;SRV:;IPV:CAL;SFV:SKN;H:us-smtp-inbound-delivery-1.mimecast.com;PTR:us-smtp-inbound-delivery-1.mimecast.com;CAT:NONE;SFS:(13230040)(39142699007)(31052699007)(30052699003)(69100299015)(4022899009)(82310400026)(1032899013)(31092699021)(13003099007)(2066899003)(8096899003);DIR:INB;
X-OriginatorOrg: rccl.onmicrosoft.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Sep 2025 11:07:13.3889
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 35163dbd-4695-4ff1-f34f-08de00118257
X-MS-Exchange-CrossTenant-Id: 1caa43b8-bf09-48b6-9b3c-bd5a56fec019
X-MS-Exchange-CrossTenant-AuthSource:
        BN3PEPF0000B370.namprd21.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: Internet
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN0PR01MB7101

Subject: [EXTERNAL] Ta med kollegorna på en inspirerande dag i Danmark - Upplev Helsingör
From: NW Production <[email-masked]>
To: [email-masked]
Date: Tue, 30 Sep 2025 13:00:40 +0200

External Email – Use caution opening attachments or clicking links.

https://url.us.m.mimecastprotect.com/s/b5EsCERyzQtlLo9KMixFjt7YCja?domain=nwproduction.se - Din konferens- och eventbyrå som arrangerarkonferenser, event, kick-off, resor och team building! Ta med kollegorna på en inspirerande dag i Danmark - Upplev HelsingörVisste du att en kort tur över sundet kan ge ny energi och inspiration till hela arbetslaget? Med färjan till Helsingör är ni snabbt framme i en charmig dansk stad full av kultur, historia och god matStarta dagen på bästa sätt – konferens till havs!Börja morgonen med en halvdagskonferens ombord på färjan mellan Helsingborg och Helsingör. Njut av havsutsikten medan ni arbetar och låt kreativiteten flöda i en inspirerande miljö.När det är dags för lunch kliver ni i land i charmiga Helsingör och avnjuter klassiska danska smörrebröd på en av stadens mysiga restauranger. En perfekt kombination av arbete, upplevelse och god mat!Avsluta dagen på bästa sättNär eftermiddagens äventyr är över tar vi färjan tillbaka till Helsingborg. Här kan ni avrunda dagen med en trevlig middag och god dryck på någon av stadens trevliga restauranger.För de som vill förlänga upplevelsen ordnar vi gärna övernattning på hotell – perfekt för att kombinera en inspirerande dag med en avkopplande kväll.Vill ni istället hålla det som en dagsutflykt? 
Då avslutar vi turen efter hemkomsten till https://url.us.m.mimecastprotect.com/s/ipR_CG6ABKCBkZYoGurH3tBV842?domain=helsingborg.vi på NW Production hjälper er att förverkliga era idéer till upplevelser! Vi arrangerar annorlunda och roliga företagsevent i Sverige men även utomlands. 
Besök gärna vår hemsida eller kontakta oss så hjälper vi er!