antispam deepheader-analysis
Use this command to configure global deep header-analysis scan settings used by antispam profiles.
Deep header analysis examines the entire message header for spam characteristics.
Not all headers may be checked, depending on your configuration of antispam trusted.
Syntax
config antispam deepheader-analysis
set confidence <percent_float>
set greyscale-level <level_int>
end
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Variable |
Description |
Default |
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Type the confidence percentage above which a message will be considered spam. The deep header scan examines each message and calculates a confidence value based on the results of the decision-tree analysis. The higher the calculated confidence value, the more likely the message is considered spam. The deep header scan adds an |
95.000000 |
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Type the grey scale threshold above which the deep header scan will be skipped. FortiGuard AntiSpam service uses the scale of 1-9 to determine the certainty of an email being spam. 1-4 means the email is almost definitely spam, while 9 is not. Increasing this threshold increases the probability of catching all spam, but can also increase false positives. |
7 |