Erics Tech Blog » drd http://eric.lubow.org Thoughts, musings, and other idealistic (sometimes useful) systems and development hoopla. Fri, 18 Nov 2011 14:56:45 +0000 en hourly 1 http://wordpress.org/?v=3.1.4 What is a DRD http://eric.lubow.org/2009/mail/what-is-a-drd/ http://eric.lubow.org/2009/mail/what-is-a-drd/#comments Wed, 29 Apr 2009 14:00:24 +0000 eric http://eric.lubow.org/?p=139 I have Google’d around asked a lot of smart people and still can’t come up with a solid answer. More specifically, the question I have is:

Why, when sending emails to certain domains, do I get the error: 451 Could not load DRD for domain

Because I deal with fairly large mailing lists, I see odd errors a lot. Most of them I can disregard. In any case in which I see an error over 1,000 times, I make it a policy to deal with it. I have seen one close to 9 million.

It appears to be an error from a Symantec appliance, but people write about it coming from Exchange servers as well.

If anyone has any idea what this, please email me, leave a comment, or post a link to somewhere.

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