Inbound Negotiate failed because of LogonDenied - Exchange 2007 Update 4

I saw this posted before but there wasn't a solution for it. From one
domain we are getting the following "Inbound Negotiate failed because of
LogonDenied", we are using Exchange 2007 Update 4 and we are currently
accepting all internet mail with our hub servers. The domain that is
having a problem sending to us is using Exchange 2000.

Inbound Negotiate failed because of LogonDenied is in the SMTP logs on the
hub server.

Does anyone have any articles why this is happening or what this means?

thanks in advance,

Eric Sabo


.

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