451.4.4.0 Primary target IP address responded with "421.4.2.1. 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."

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Language: English
Channel Number: 12697460
Article Number: 2422
Date: September 20, 2014, 1:23 am
URL: https://social.technet.microsoft.com/Forums/en-US/bef15a62-95fd-4098-beea-4359099689bb/451440-primary-target-ip-address-responded-with-421421-unable-to-connect-attempted?forum=exchangesvrsecuremessaging
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