Sharepoint Incoming Mail Stuck In The Exchange 2007 Queue

Hello All,

I've mail enabled a list in share point (SBS 2008, Sharepoint 3, Exchange 2007).  Everything works good when setting up the list.  Sharepoint creates the contact and everything works fine for that.  The problem is when I try to send an email to the contact created it gets stuck in the Exchange 2007 queue saything that there is a  DNS 451 4.4.0 Primary Target IP Address responded with (421 4.2.1 Unable to Connect).....  I assume there must be a permissions problem somewhere or something.  Sharepoint is running under the Network Service account and does have full control on the mail drop folder.  Any help would be greatly appreciated.  Thanks.
rcblevinsAsked:
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Justin SmithSr. System EngineerCommented:
What domain are you using for list email addresses?  If it's an internal domain (spserver.domain.int), did you let Exchange know how to handle this domain?  And/or make a new MX record in DNS?
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rcblevinsAuthor Commented:
I was using cw. + our domain name and no I had not done anything to exchange or DNS to handle the domain.  Thanks.
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Justin SmithSr. System EngineerCommented:
so when you send to that email domain (cw.domain.com), Exchange is trying to do a DNS lookup to the domain.  Since it's not a public domain, and not in your DNS, it's failing.

You either need to add an MX record to your internal DNS, that points to your SP server, or add a send connector in Exchange to send email for that domain to your SP server.

One more thing, I'm not real familiar with SBS, so things could be a bit different.  
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rcblevinsAuthor Commented:
Thanks.  I added a send connector to exchange and know the message is being caught in the queue viewer saything with a message that "A local loop has been detected".  Since this is SBS I haven't found alot of information around it.  Exchange and Sharepoint are on the same server, so I'm not sure what has to be done to get exchange to handle things properly for sharepoint.
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Justin SmithSr. System EngineerCommented:
According to TechNet, incoming email won't work on WSS / SBS:  http://technet.microsoft.com/en-us/library/cc671966(WS.10).aspx

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rcblevinsAuthor Commented:
Thanks, setting up the foreign connector did the trick.  Thanks for the help.
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