You have an Exchange organization. All servers in the organization have Exchange Server
2010 Service Pack 1 (SP1) installed.
An external user reports that when he sends e-mail messages to the organization, they are
not received.
You suspect that the e-mail messages he sends are incorrectly identified as spam.
You need to identify which anti-spam filter is blocking the e-mail messages.
What should you do?
A.
Modify the message tracking settings, and then review the message tracking logs.
B.
Modify the protocol logging level, and then review the protocol logs.
C.
Modify the connectivity log settings, and then review the connectivity logs.
D.
Enable pipeline tracing, and then review the trace.
Explanation:
http://technet.microsoft.com/en-us/library/bb125018.aspx
http://blogs.technet.com/b/provtest/archive/2010/07/27/exchange-server-2010-sp1-betahosting-deploymentpart-7-transport-segregation.aspx?PageIndex=2