Subject: Undelivered Mail Returned to Sender

From: Mail Delivery System <[email-masked]>
Date: Thu, 23 Oct 2025 09:30:45 +0200 (CEST)

This is the mail system at host mx01.svenskadomaner.se.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
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                   The mail system

<[email-masked]>: host
    system11.svenskadomaner.se[193.234.30.130] said: 550 No Such User Here (in
    reply to RCPT TO command)

Subject: Ny kurs: Värmepump som ersättningeller komplement till befintlig värmeförsörjning
From: Svensk Energiutbildning <[email-masked]>
To: [email-masked]
Date: Thu, 23 Oct 2025 09:30:44 +0200

Ny värmepump med fokus
på prestanda och livslängdKurs om hur värmepumpar installeras för att hålla projekterad prestanda med tillåtna köldmedier under sin tekniska livslängd. Vid ersättning eller komplettering av fjärrvärme, värmepanna eller befintlig värmepump.