Exchange 2013 Anti-Spam doesn't block most spam (even GTUBE test mail is passed)

Hello All,

I have been installing and configuring Anti-Spam agents on my Exchange Servers. When testing with a GTUBE test mail, I see the mail is passed through and delivered to the end-user mailbox. The AgentLog shows:

2013-09-10T06:53:56.911Z,08D078FD1630A0BE,10.x.y.z:25,78.47.119.33:57650,78.47.119.33,emailsecuritycheck.net.3.dmPd6!rpDgG9NsTHLlzAIw==,securitycheck@emailsecuritycheck.net,securitycheck@emailsecuritycheck.net;,<testuser>@<domain>.com,1,Content Filter Agent,OnEndOfData,AcceptMessage,,SCL,2,,2407cb00-38da-4875-925d-08d07c09a7ad,,Undefined

So the message is scanned and marked as SCL 2! Why doesn't Exchange catagorize it as SCL 9?

Regards,

Stephan

You know you're an engineer when you have no life and can prove it mathematically