You configure Symantec Protection Center to send email to an internal email address through a Microsoft Exchange 2007 server on Windows Essential Business Server 2008 or Windows Small Business Server 2008. The email is not sent.
By default, Exchange 2007 on those platforms requires users to authenticate using NTLM authentication. Symantec Protection Center does not support NTLM authentication.
To work around the problem, either use an external email address, or configure Exchange 2007 to allow anonymous logins from the Symantec Protection Center server.
For instructions on how to configure Exchange 2007 to allow anonymous logins from the Symantec Protection Center server, follow the steps under "To use the Exchange Management Console to create a new Receive connector that grants the relay permission to anonymous connections" on the following Microsoft Web page: