Subject: Undeliverable: Lär dig klimatberäkning för uppföljning, certifiering och klimatdeklaration

From: <[email-masked]>
Date: Mon, 18 Aug 2025 07:44:00 +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.
[email-masked] only accepts messages from people in its organization or on its allowed senders list, and your email address isn't on the list.
19812_4761_681321_bo. . .       Office 365      johan.frick
Sender          Action Required
Sender not allowed

How to Fix It
It appears you aren't in the same organization as the recipient or your email address isn't on their allowed senders list. Contact the person you're sending your message to (by phone, for example) and tell them to ask their email admin to change the settings on their mailbox so it will accept messages from you.

Was this helpful? Send feedback to Microsoft<https://go.microsoft.com/fwlink/?LinkId=615008>.
________________________________

More Info for Email Admins
Status code: 550 5.7.134

This error occurs when the recipient (an Office 365 mailbox) is configured to accept messages only from authenticated senders (senders in the same organization or those added to the recipient's allowed senders list).

To fix the issue, the recipient's email admin must add the sender's email address to the mailbox's allowed senders list, or they must turn off the mailbox's message delivery restrictions setting that requires that all senders to it are authenticated.

This issue can only be fixed by the recipient's email admin.

For more information and steps to fix this issue, see Fix email delivery issues for error code 5.7.134 in Office 365<https://go.microsoft.com/fwlink/p/?LinkId=615128>.

Original Message Details
Created Date:   8/18/2025 6:27:05 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        Lär dig klimatberäkning för uppföljning, certifiering och klimatdeklaration

Error Details
Error:  550 5.7.134 RESOLVER.RST.SenderNotAuthenticatedForMailbox; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this mailbox
Message rejected by:    GVYP280MB0463.SWEP280.PROD.OUTLOOK.COM

Notification Details
Sent by:        GVYP280MB0463.SWEP280.PROD.OUTLOOK.COM

Message Hops
HOP     TIME (UTC)      FROM    TO      WITH    RELAY TIME
1       8/18/2025
6:27:05 AM      [127.0.0.1]     iota.post.nuhet.se      ESMTPSA *
2       8/18/2025
7:43:57 AM      iota.post.nuhet.se      AMS0EPF000001A8.mail.protection.outlook.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   1 hr, 16 min, 52 sec
3       8/18/2025
7:43:58 AM      AMS0EPF000001A8.eurprd05.prod.outlook.com       CWLP265CA0538.outlook.office365.com     Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384)   1 sec
4       8/18/2025
7:43:58 AM      CWLP265CA0538.GBRP265.PROD.OUTLOOK.COM  GVYP280MB0463.SWEP280.PROD.OUTLOOK.COM  Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384)    *

Original Message Headers

Date: Mon, 18 Aug 2025 08:27:05 +0200
Subject: =?utf-8?Q?L=C3=A4r?= dig
 =?utf-8?Q?klimatber=C3=A4kning_f=C3=B6r_uppf=C3=B6ljning=2C?= certifiering
 och klimatdeklaration
From: Svensk Energiutbildning <[email-masked]>
Reply-To: [email-masked]
To: [email-masked]

Subject: Lär digklimatberäkning för uppföljning, certifiering och klimatdeklaration
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Mon, 18 Aug 2025 08:27:05 +0200

Klimatberäkning i praktikenKurs om klimatberäkning i syfte att följa upp klimatavtryck i byggprojekt, att upprätta en klimatdeklaration eller för certifiering med Miljöbyggnad 4.0 och NollCO2 – om beräkningsprogram, indata och resultatredovisning.