The sensitivity levels available to you are:

• Very Unaggressive: Message must exceed a "Spam Score" of 17 to be identified as Spam.
• Unaggressive: Message must exceed a "Spam Score" of 12 to be identified as Spam.
• Aggressive: Message must exceed a "Spam Score" of 8 to be identified as Spam.
• Very Aggressive: Message must exceed a "Spam Score" of 5 to be identified as Spam.
• Militant: Message must exceed a "Spam Score" of 3 to be identified as Spam. (will VERY likely catch real mail)

The less aggressive the "Spam Score" you select, the less likely a message will be determined to be spam. The more aggressive the level you select, the greater the chance of any message being determined to be spam by the system.