Configure antispam filter analysis
Steps
- 
                (If applicable) Enable hybrid service spam scoring; in the box Email Hybrid Service analysis, mark the check box Use email hybrid service analysis with a
                        threshold score for spam of.
                Select a spam score from the pull-down menu (floating point number between 0 and 20; default is 6). This option only displays when the Email Security Hybrid module is configured and running. 
- 
                From the section Tools, mark the check boxes for one or all of the following tools:
                - Digital Fingerprinting analysisWhen enabled, digital fingerprint analysis checks message content for any digital fingerprint of known spam. 
- LexiRules analysisWhen enabled, the LexiRules tool analyzes message content for word patterns commonly found in spam. 
- Heuristics analysisWhen enabled, heuristics analysis checks the message header or content for spam characteristics. 
 The on-premises software performs a complete antispam examination using the selected tools when the Email Security Hybrid module is not enabled. 
- Digital Fingerprinting analysis
- 
                From the section Heuristics Analysis, set the heuristics analysis sensitivity level, from Lowest to Highest.
                The default is Medium.
- 
                (Optional) Mark the check box Bypass antispam analysis if message size exceeds.
                In the text field, enter a message size in KB (default is 3072). Selection indicates to use message size to determine whether antispam analysis is bypassed. 
- 
                Configure additional filter settings and click OK. 
                The antispam filter settings are saved.