Subject: Undeliverable: God fortsättning & Välkommen 2026!

From: <[email-masked]>
Date: Tue, 13 Jan 2026 09:23:41 +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.
The group johan.ohlsson only accepts messages from people in its organization or on its allowed senders list, and your email address isn't on the list.
6_4850_713873_bounce    Office 365      johan.ohlsson
Sender          Action Required
Sender not allowed

How to Fix It
It appears you aren't in the same organization as the group (or a sub-group) you're sending to or your email address isn't on the group's allowed senders list. Ask the owner of the group to grant you permission to send to it, and then try again. If the group belongs to a different organization than yours, contact the organization's customer service department for assistance. If the group is in your organization and you don't know who the group owner is, you can find it by doing the following in either Outlook on the web or Outlook:

  *   Open your Sent folder and select the original message.
  *   If you're using Outlook on the web, select the group name located on the To or CC line. If you're using Outlook, double-click the group name located on the To or CC line.
  *   In Outlook on the web, from the pop-up dialog box, choose Owner. In Outlook, choose Contact. The owner's name is listed under Owner.

The owner of the group may have intentionally chosen to restrict who can send messages to it, and they may not want to adjust the existing restriction. In this case, you'll have to contact the group members by some other means, such as sending an email message to their individual email addresses or contacting them by phone.

Was this helpful? Send feedback to Microsoft<https://go.microsoft.com/fwlink/?LinkId=615007>.
________________________________

More Info for Email Admins
Status code: 550 5.7.133

This error occurs when the distribution group, security group, or Microsoft 365 group is configured to accept messages only from authenticated senders (senders in the same organization or those added to the group's allowed senders list).

To fix the issue, the recipient's email admin or the group owner must add the sender's email address to the group's allowed senders list or change the group's delivery management setting to accept messages from senders inside and outside of the organization.

Usually this issue can only be fixed by the recipient's email admin or the group owner.

For more information and steps to fix this error, see Fix email delivery issues for error code 5.7.133 in Office 365<https://go.microsoft.com/fwlink/p/?LinkId=615127>.

Original Message Details
Created Date:   1/13/2026 9:23:10 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        God fortsättning & Välkommen 2026!

Error Details
Error:  550 5.7.133 RESOLVER.RST.SenderNotAuthenticatedForGroup; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this group
Message rejected by:    AS8P189MB1304.EURP189.PROD.OUTLOOK.COM

Notification Details
Sent by:        AS8P189MB1304.EURP189.PROD.OUTLOOK.COM

Message Hops
HOP     TIME (UTC)      FROM    TO      WITH    RELAY TIME
1       1/13/2026
9:23:10 AM      [127.0.0.1]     post.nuhet.se   SMTP    *
2       1/13/2026
9:23:10 AM              post.nuhet.se           *
3       1/13/2026
9:23:38 AM      post.nuhet.se   DB5PEPF00014B91.mail.protection.outlook.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   28 sec
4       1/13/2026
9:24:12 AM      DB5PEPF00014B91.eurprd02.prod.outlook.com       DUZPR01CA0056.outlook.office365.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   34 sec
5       1/13/2026
9:23:40 AM      DUZPR01CA0056.eurprd01.prod.exchangelabs.com    AS8P189MB1304.EURP189.PROD.OUTLOOK.COM  Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    *

Original Message Headers

From: NW Production <[email-masked]>
To: [email-masked]
Reply-To: [email-masked]
Subject: God fortsättning & Välkommen
 2026!
Date: Tue, 13 Jan 2026 10:23:10 +0100

Subject: God fortsättning & Välkommen2026!
From: NW Production <[email-masked]>
To: [email-masked]
Date: Tue, 13 Jan 2026 10:23:10 +0100

www.nwproduction.se - Din konferens- och eventbyrå som arrangerarkonferenser, event, kick-off, resor och team building! God fortsättning och välkommen 2026!Vi på NW Production ser fram emot ännu ett år fyllt med magiska möten, kreativa event och minnesvärda upplevelser. Tillsammans skapar vi upplevelser som stärker team, inspirerar och verkligen gör skillnad — lås oss göra 2026 till ett år att minnas!Dags att fira stort & betydelsefullt?Oavsett om ni planerar en kick-off som sätter tonen för året, inviger nya lokaler, firar ett jubileum, eller vill skapa en oförglömlig företagsfest — vi finns här för att lyfta era idéer till verklighet.
Och det bästa? Ni kan luta er tillbaka och vara gäster på er egen tillställning medan vi tar hand om allt runt omkring.Vad kan vi hjälpa er med?Vi skräddarsyr:

Kick-offs och konferenser
Teambuilding och motivationsdagar
Incentiveresor & företagsresor
Jubileum och galakvällar
Projektledning från idé till genomförande

Med passion, kreativitet och professionalism i varje detalj skapar vi upplevelser som engagerar, stärker samhörigheten och gör att deltagarna känner sig sedda.Varför välja oss?

Erfarenhet som gör skillnad – sedan 2003 har vi levererat event som både inspirerar och engagerar.
Helhetslösningar – vi tar hand om planeringen så att ni kan fokusera på innehållet.
Ett engagerat nätverk – professionella partners över hela världen gör att vi kan skapa unik kvalitet.
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!