Dear Support, I want to ask about the Intelligent Message Filtering function in Exchange 2003, is thehigher numbering in the rating will block more email or lower?

Hello, Selecting a lower number for SCL rating filters/blocks more messages but increases the likelihood of false positives. Selecting a higher number for SCL rating filters/blocks fewer messages but reduces the likelihood of false positives. So start with 7-8 SCL and lower/higher value to identify the actual rating for your organization and do experiments.

For your information: Spam ConfidenceLevel Spam Categorization -1 Reserved by Microsoft Exchange Server for messages submitted internally. A value of -1 should not be overwritten because it is this value that is used to eliminate false positives for internally-submitted e-mail. 0 Assigned to messages that are not spam. 1 Extremely low likelihood that the message is spam. 9 Extremely high likelihood that the message is spam. Thank you, Elvis

Thanks for both help me to clarify the question. Danny