The account ‘%1’ provided valid credentials, but it does not have submit permissions on Receive connector ‘%2’ and so authentication has failed.

Details
Product: Exchange
Event ID: 1018
Source: MSExchangeTransport
Version: 8.0
Symbolic Name: SmtpReceiveAuthorizationSubmitRejected
Message: The account ‘%1’ provided valid credentials, but it does not have submit permissions on Receive connector ‘%2’ and so authentication has failed.
   
Explanation

This Warning event indicates that the security principal that is trying to use the specified Receive connector does not have the Ms-Exch-SMTP-Submit permission assigned to it on the Receive connector. Security principals are user accounts, computer accounts, or security groups.

The Ms-Exch-SMTP-Submit permission allows the Receive connector to accept the SMTP MAIL FROM: command from the connecting messaging server.

Receive connectors grant permissions to security principals or to permission groups. Permission group members and their assigned permissions are not modifiable. All permission groups grant the Ms-Exch-SMTP-Submit permission on the Receive connector.

   
User Action

To resolve this warning, do one of the following:

  • Use the PermissionGroups parameter on the Set-ReceiveConnector in the Exchange Management Shell to assign the appropriate permission group to the Receive connector.

  • Use the Set-ADPermissions cmdlet in the Exchange Management Shell to grant the Ms-Exch-SMTP-Submit permission to an appropriate security principal, and then assign that security principal to the Receive connector.

For more information, see the following Microsoft Exchange Server 2007 Help topics:

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.

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