Subject: Undeliverable: Kurs om tappvattensystem - energieffektivisering och legionella

From: <[email-masked]>
Date: Thu, 8 Jan 2026 07:02:31 +0000

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

  *   Send the message again following these steps: In Outlook, open this non-delivery report (NDR) and choose Send Again from the Report ribbon. In Outlook on the web, select this NDR, then select the link "To send this message again, click here." Then delete and retype the entire recipient address. If prompted with an Auto-Complete List suggestion don't select it. After typing the complete address, click Send.
  *   Contact the recipient (by phone, for example) to check that the address exists and is correct.
  *   The recipient may have set up email forwarding to an incorrect address. Ask them to check that any forwarding they've set up is working correctly.
  *   Clear the recipient Auto-Complete List in Outlook or Outlook on the web by following the steps in this article: Fix email delivery issues for error code 5.1.1 in Office 365<https://go.microsoft.com/fwlink/?LinkId=389363>, and then send the message again. Retype the entire recipient address before selecting Send.

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More Info for Email Admins
Status code: 550 5.1.1

This error occurs because the sender sent a message to an email address outside of Office 365, but the address is incorrect or doesn't exist at the destination domain. The error is reported by the recipient domain's email server, but most often it must be fixed by the person who sent the message. If the steps in the How to Fix It section above don't fix the problem, and you're the email admin for the recipient, try one or more of the following:

The email address exists and is correct - Confirm that the recipient address exists, is correct, and is accepting messages.

Synchronize your directories - If you have a hybrid environment and are using directory synchronization make sure the recipient's email address is synced correctly in both Office 365 and in your on-premises directory.

Errant forwarding rule - Check for forwarding rules that aren't behaving as expected. Forwarding can be set up by an admin via mail flow rules or mailbox forwarding address settings, or by the recipient via the Inbox Rules feature.

Mail flow settings and MX records are not correct - Misconfigured mail flow or MX record settings can cause this error. Check your Office 365 mail flow settings to make sure your domain and any mail flow connectors are set up correctly. Also, work with your domain registrar to make sure the MX records for your domain are configured correctly.

For more information and additional tips to fix this issue, see Fix email delivery issues for error code 550 5.1.1 in Office 365<https://go.microsoft.com/fwlink/?LinkId=389363>.

Original Message Details
Created Date:   1/8/2026 7:02:16 AM
Sender Address: [email-masked]
Recipient Address:      [email-masked]
Subject:        Kurs om tappvattensystem - energieffektivisering och legionella

Error Details
Error:  550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. For more information, go to 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser d75a77b69052e-4ffa8d4962csi83407531cf.53 - gsmtp
Message rejected by:    mx.google.com

Notification Details
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Original Message Headers

From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Reply-To: [email-masked]
Subject: Kurs om tappvattensystem - energieffektivisering och legionella
Date: Thu, 08 Jan 2026 08:02:16 +0100
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Subject: Kurs om tappvattensystem - energieffektivisering och legionella
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Thu, 08 Jan 2026 08:02:16 +0100

CAUTION: External Email sender.

Om du inte kan läsa mejlet, klicka här<https://post.nuhet.se/newsletter/3273/parse/desktop/html/eyJpdiI6InpBN3FVc0F1aTM5cnNoUWwySzZqaFE9PSIsInZhbHVlIjoiL29QVnlPRWVoVFBiVE1LQ2Fwa1RMa01SVnd0czdLY0QyQmdSNkNrQks0aURXaU5LRDcxZThWOW5VNVRXbXF2OWs4UEppYUtVM0lBNmFyaGFMSE5JQTlQNlZhNnB4MVMyM1h0cUYyR2NHcnNVaXBYK2hNMzI0Sy92R3J0QlBwY0EiLCJtYWMiOiIzZjczYzFhMDM5NGJhOGMxZjFmNDhmZDBkYzFkMTZkZTMyNDk3MmUyYjcxYzk1OTVkYWY4Y2E4MGU0NDBmZTcwIiwidGFnIjoiIn0=>

[https://post.nuhet.se/images/public/19812_da0294042249e574a7943e64f9d6043b.jpg]

KURS
3+4 februari 2026   kl 8.30-12.00

Legionella och energiförluster i tappvattensystem

Kurs om hur energiförluster minskas i VVC- och tappvattensystem

samt hur man förebygger och hanterar utbrott av legionella.

[https://post.nuhet.se/images/public/19812_96a45868598e1d4c662f536aea775b12.jpg]
VVC-FÖRLUSTER ÄR OFTA HÖGA
Energiförluster från VVC är ofta höga och varierar stort enligt gjorda kartläggningar. Ingen tydlig koppling till byggår framgår och det gäller alltså även nybyggnad. En förklaring är att VVC-förluster nästan alltid uppskattas med schablonvärde i projektering. Osäkerheten består i energiuppföljning och sedan daglig drift.

HUR BEGRÄNSAS ENERGIFÖRLUSTERNA
I kursen lär du dig att både mäta och beräkna VVC-förluster. Utifrån denna kunskap går vi igenom vilka åtgärder som kan vidtas i befintliga system och hur man styr upp såväl projektering som utförande i ny- och ombyggnad.

FÖREBYGG OCH HANTERA LEGIONELLA
Kunskapsbristen om legionella är stor i branschen trots att konsekvenserna kan bli både kostsamma och ödesdigra. I kursen lär du dig vad legionella är, hur man mäter förekomsten, hur man minimerar riskerna och bekämpar utbrott. Vi går också igenom gällande lagstiftning som innebär stort ansvar för fastighetsägare.

KURSLEDARE
Jonatan von Seth är energi- och legionellaexpert på Aktea och flitigt anlitad av fastighetsägare som har drabbats av legionellautbrott eller som vill energieffektivisera sina tappvattensystem.

LÄNKAR
- KURSPROGRAM<https://post.nuhet.se/url/eyJzZW5kb3V0X2lkIjo0ODQ2LCJzdGF0X2lkIjo4NTUwNzMsInVybCI6Imh0dHBzOlwvXC9zdmVuc2stZW5lcmdpdXRiaWxkbmluZy5zZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvTGVnaW9uZWxsYS1vY2gtZW5lcmdpZm9ybHVzdGVyLWktdGFwcHZhdHRlbnN5c3RlbS5wZGYifQ==>
- ANMÄLAN<https://post.nuhet.se/url/eyJzZW5kb3V0X2lkIjo0ODQ2LCJzdGF0X2lkIjo4NTUwNzMsInVybCI6Imh0dHBzOlwvXC9zdmVuc2stZW5lcmdpdXRiaWxkbmluZy5zZVwvbGVnaW9uZWxsYS1vY2gtZW5lcmdpZm9ybHVzdGVyLWktdGFwcHZhdHRlbnN5c3RlbVwvIn0=>

Svensk Energiutbildning AB är ett oberoende utbildningsföretag.

ANDRA KURSER
Installationsteknisk energieffektivisering<https://post.nuhet.se/url/eyJzZW5kb3V0X2lkIjo0ODQ2LCJzdGF0X2lkIjo4NTUwNzMsInVybCI6Imh0dHBzOlwvXC9zdmVuc2stZW5lcmdpdXRiaWxkbmluZy5zZVwvaW5zdGFsbGF0aW9uc3Rla25pc2tfZW5lcmdpZWZmZWt0aXZpc2VyaW5nXC8ifQ==>
Ny värmepump med fokus på prestanda och

Om du vill avbryta din prenumeration Klicka här<https://post.nuhet.se/subscription/eyJpdiI6InV0M1BDZ2hNalpidGtqRFFaQVNKT2c9PSIsInZhbHVlIjoib044VVdiMTdoaklOZmd3RnZ6WGNzdmh4ZnlyR1J3Nk1KKzRiTnMzZnNIUHNWVUNLSFFqQ3hBK3V4Vmo5a0tSQU5XemFJSGYrMThqNlM5bGU3YVFFOEtIUnlyT0d2dndab1FkNll1VkxxM2xveGI4R28zU01QYlFmcis0OEJjQkwiLCJtYWMiOiJkNmUwOWVkZDA3MDBkYzljNzVhODBmZmI1NjAwODcxZTVmNmZmYjZiNTkxNDE2MTZhZWVlY2ExZWY0ZjlhN2UzIiwidGFnIjoiIn0=>