![]() This was configured as an Internet connector ( to relay emails directly to internet) and not via the smart host.We created a new Exchange Outbound connector, Under Organisation Configuration -> Hub Transport -> Send Connector.To troubleshoot and to eliminate the role of PPE PPE was acting as smart host as well as Spam protection for the Exchange server. We troubleshoot the error and found that the issue to be with Smart host server with an US based company PPE. Generating server: #554 5.7.1 : Relay access denied # The following organization rejected your message: .ĭiagnostic information for administrators: It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery. Your message wasn’t delivered due to a permission or security issue. ![]() A customer with Microsoft Exchange 2010 suddenly reported email down situation, we found the databases to be Mounted and Outlooks were connected fine, it was just that when they were sending outbound email they were getting error Relay access denied Error 554 5.7.1
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