I have just installed Exch2007 and am having problems with sending mail.
Messages just sit in the queue with the follwoing error message:
451 4.4.0 primary target IP address responded with "422.214.171.124 unable to connect."attempted failover to alternate host, but that did not succeed.Either there are no alternate hosts, or delivery failed to all alternate hosts.
Any ideas what is wrong or what I shoudl be checking?
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