[Ahfeng] Warning: could not send message for past 4 hours

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The original message was received at Sun, 20 Dec 2009 00:22:31 +0100
from [190.69.233.1]

   ----- Transcript of session follows -----
451 polarhome.com: Name server timeout
451 polarhome.com: Name server timeout
451 polarhome.com: Name server timeout
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
451 polarhome.com: Name server timeout
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From: Pfizer ® Customer Service <ahfeng at polarhome.com>
Subject: {Spam?  3.86} Special offer ahfeng at polarhome.com receive 70% OFF on Pfizer.
Date: Sun, 20 Dec 2009 00:22:30 +0100
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URL: <http://redhat.polarhome.com/pipermail/ahfeng/attachments/20091220/520858d6/attachment.mail>