troubleshooting Question

Exchange 2007 Public folders will not receive e-mail from outside domain

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ethernet69 asked on
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I have an SBS2008 server running Exchange 2007. Mail flow works fine using the private (mail) information store. We can also use public folders internally and send/receive e-mail to/from these mail-enabled public folders without any issues. However, here's the problem:
When we send a message from an EXTERNAL domain to any one of these mail-enabled public folders, I get an NDR back stating:
This message was created automatically by mail delivery software.

"A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

    No Such User Here"

I know what you are probably thinking: He doesn't have the Anonymous Account set to "Contributer" permissions on these public folders. Well, I can tell you that I have, in fact, given the Anonymous account "Contributor" permissions on all folders, but I STILL get these NDRs.
Can you help resolve this for me? Any help/forward motion would be greatly appreciated.


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