Resources lose the domain

Matthias Hütter matthias.huetter at
Mo Apr 18 14:47:33 CEST 2016

Resources lose the domain 

When creating appointments the resources loose their domain-part. 

Any ideas where to find a solution for this? 

This is the mail system at host 

I'm sorry to have to inform you that your message could not
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If you do so, please include this problem report. You can
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The mail system 

<resource-confroom-og-rechts at>: unknown user:
Reporting-MTA: dns;
X-Postfix-Queue-ID: B91E411AD0D
X-Postfix-Sender: rfc822; gerate.gerate at
Arrival-Date: Mon, 18 Apr 2016 14:39:55 +0200 (CEST) 

Final-Recipient: rfc822; resource-confroom-og-rechts at
Original-Recipient: rfc822;resource-confroom-og-rechts at
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Postfix; unknown user: "resource-confroom-og-rechts" 

Mit freundlichen Grüßen/ Best Regards

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