SMTP fejl med CDOSYS

Når jeg sender emails med nedenstående script får jeg samme fejl på 1 ud af 10 emails. Se fejlen nederst. Hvordan løser jeg problemet? Eksemplerne er annonyme.

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Set objMail = Server.CreateObject("CDO.Message")
objMail.From = "name@domain.dk"
objMail.To = "name@domain.dk"
objMail.Subject= "CDO"
objMail.TextBody = "Insert here your plain body text"
objMail.Send
Set objMail = Nothing

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Reporting-MTA: dns;(SERVER)
Received-From-MTA: dns;(SERVER)
Arrival-Date: Tue, 28 Feb 2006 16:08:05 +0100

Final-Recipient: rfc822;(EMAIL)
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;504 <(SERVER)>: Helo command rejected: need fully-qualified hostname
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