After installing SMSMSE on a Microsoft Exchange 2007 or later server, and enabling Symantec Premium Antispam (SPA), spam is not being detected.

Conditions

• Premium AntiSpam is installed to a server that is not the first point of contact for mail coming in to the organization.
• The first mail server in the environment is set as an internal sender in the transport configuration of the Exchange server on which SMSMSE is installed.

Steps to verify if a front end server is set as an internal sender in Exchange configuration

1. Open the Exchange Management Shell.
2. Run the command Get-TransportConfig | Format-List InternalSMTPServers
   
   If the IP address(es) of the server(s) processing mail prior to the Exchange server on which SMSMSE is installed are listed in brackets {}, this condition is met.

Remove the front end server from the internal senders.

Steps to remove a server from internal senders

1. Open the Exchange management shell
2. Run the command Set-TransportConfig -InternalSMTPServers @{remove="<ip of front end server>"}
   For example, if the front end server has IP 10.10.10.10, the command would be:  Set-TransportConfig -InternalSMTPServers @{remove="10.10.10.10"}
3. Restart the Microsoft Exchange Transport Service and the Symantec Mail Security for Microsoft Exchange service.