Subject: Undeliverable: [External] Installationstekniska åtgärder som sparar energi – gå kursen!

From: <[email-masked]>
Date: Thu, 18 Sep 2025 12:40:46 +0000

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How to Fix It
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  *   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.

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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:   9/18/2025 10:11:48 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        [External] Installationstekniska åtgärder som sparar energi – gå kursen!

Error Details
Error:  550 5.1.351 Remote server returned unknown recipient or mailbox unavailable -> 550 Invalid recipient: <[email-masked]>
Message rejected by:    altmgw10.alt.securitas.se

Notification Details
Sent by:        GV3P280MB0546.SWEP280.PROD.OUTLOOK.COM

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Original Message Headers

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Subject: [External] Installationstekniska åtgärder som sparar energi – gå kursen!
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Thu, 18 Sep 2025 12:11:48 +0200

WARNING: This message was sent by someone outside Securitas. Please do not reply, click links or open attachments from senders that you do not trust. When in doubt, use the Report Message button.

Om du inte kan läsa mejlet, klicka här<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpost.nuhet.se%2Fnewsletter%2F3234%2Fparse%2Fdesktop%2Fhtml%2FeyJpdiI6ImRrVzVSQW1QVTdDTFczWE5ONzVwc3c9PSIsInZhbHVlIjoiQnFDb05pdjd5OFh4dERXMkRyNGx2dVBHL0F1Q213SFllcFAzWDNFVmd4R0ttZytvWjlhRlZadUZVMFFodmNKK2FnalhQbVBpdFR4VHAxMGJtV2pWM2RvdHExSkN0QUx3RzBiMVhjVlk4N2tENnFTa3RmOGJHTC9tTS95YWRQbjYiLCJtYWMiOiIxNjMwNTJiOTRlZGQ5OTA5MWUxZmFjNzA2ZWIyZjUxNjlmMTE4NzRlZjgyZGQ3NDM1NGUyM2FjYjQ3MGExYjNlIiwidGFnIjoiIn0%3D&data=05%7C02%7Caddi.djalilian%40securitas.se%7C96b519779a224bd9296308ddf6b01526%7Cfb0af7d18a8348bc8d2dcd92034c79d4%7C0%7C0%7C638937960460621684%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C20000%7C%7C%7C&sdata=siyG3W7ZcKNie6kFpPHn%2BUnXLayv6mZxIpfRj9a%2F%2BrM%3D&reserved=0>

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KURS
Malmö: 4+5 nov 2025
Göteborg: 12+13 nov 2025
Stockholm: 26+27 nov 2025
online: 11+12+16 dec 2025

Installationsteknisk energieffektivisering

Kurs om hur man driftoptimerar och energieffektiviserar byggnader

med installationstekniska åtgärder.

[https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpost.nuhet.se%2Fimages%2Fpublic%2F19812_442ff7927191982804457e72383f436b.JPG&data=05%7C02%7Caddi.djalilian%40securitas.se%7C96b519779a224bd9296308ddf6b01526%7Cfb0af7d18a8348bc8d2dcd92034c79d4%7C0%7C0%7C638937960460693612%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C20000%7C%7C%7C&sdata=CxHZ5NySkHBg2VjpGLHYVt0tYqXhHLCNJLuRHfQd8k8%3D&reserved=0]

INSTALLATIONER AVGÖRANDE
All energi som köps till en byggnad distribueras genom installationer. Att dessa är välfungerande är en förutsättning för såväl lågt energibehov som bra inomhusklimat och det finns alltid åtgärder att göra för att ytterligare minska energianvändningen.

DU LÄR DIG
I kursen lär du dig att driftoptimera värme- och luftbehandlingssystem men också att analysera installationstekniska åtgärder för ytterligare energibesparingar. Stor vikt läggs vid mätning, analys och injustering men också vid metodiken att genomföra åtgärder i rätt ordning och i rätt kombination.

MÅLGRUPP
Energisparprojekt berör många aktörer och yrkesgrupper. Vi vänder oss till driftpersonal som arbetar med VVS- och energifrågor i fastigheter respektive energikonsulter och installatörer som involveras i energieffektiviseringsprojekt.

KURSLEDARE
Rickard Larsson är energiexpert på Aktea och flitigt anlitad av fastighetsägare som vill driftoptimera och energieffektivisera sina installationssystem. Hans arbetsuppgifter spänner över allt från energiutredningar, felsökning och driftoptimering till projektledning och installationssamordning.

Välkommen på kurs!

LÄNKAR
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PÅ SAMMA TEMA
Legionella och energiförluster <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpost.nuhet.se%2Furl%2FeyJzZW5kb3V0X2lkIjo0NzgxLCJzdGF0X2lkIjo3MzM4NDYsInVybCI6Imh0dHBzOlwvXC9zdmVuc2stZW5lcmdpdXRiaWxkbmluZy5zZVwvbGVnaW9uZWxsYS1vY2gtZW5lcmdpZm9ybHVzdGVyLWktdGFwcHZhdHRlbnN5c3RlbVwvIn0%3D&data=05%7C02%7Caddi.djalilian%40securitas.se%7C96b519779a224bd9296308ddf6b01526%7Cfb0af7d18a8348bc8d2dcd92034c79d4%7C0%7C0%7C638937960460794679%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C20000%7C%7C%7C&sdata=yCAn7ZoPNVzYJnnKopyjhKVAJe9JEPHYrDL%2F8j4l4Yg%3D&reserved=0> i tappvattensystem<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpost.nuhet.se%2Furl%2FeyJzZW5kb3V0X2lkIjo0NzgxLCJzdGF0X2lkIjo3MzM4NDYsInVybCI6Imh0dHBzOlwvXC9zdmVuc2stZW5lcmdpdXRiaWxkbmluZy5zZVwvbGVnaW9uZWxsYS1vY2gtZW5lcmdpZm9ybHVzdGVyLWktdGFwcHZhdHRlbnN5c3RlbVwvIn0%3D&data=05%7C02%7Caddi.djalilian%40securitas.se%7C96b519779a224bd9296308ddf6b01526%7Cfb0af7d18a8348bc8d2dcd92034c79d4%7C0%7C0%7C638937960460818049%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C20000%7C%7C%7C&sdata=3nHXeAdu0l27tzUG9PDlfJFfi3tDzdAge3G4dn3nDWs%3D&reserved=0>

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