3Com 3CR3MFA-92 User Manual page 51

Mail identified as "bulk" by DCC is also analyzed to provide an
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example of local spam.
Select STA from the Mail Delivery -> Anti-Spam menu to configure STA
settings.
STA Mode — Use one of the following three modes for STA:
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Normal: This is the default mode and is recommended in most
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cases. The STA upper threshold is set to 85, and the lower
threshold to 65. Any message with a metric 85 or above will be
considered spam. A metric between 85 and 65 will be considered
Maybe Spam, and will trigger an action if you have the Maybe
Spam option enabled. A metric lower than 65 is considered
legitimate mail.
Aggressive: Increases STA's aggressiveness to ensure more spam is
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caught, but also increases the possibility of false positives.The STA
upper threshold is set to 80, and the lower threshold to 50. Any
message with a metric 80 or above will be considered spam. A
metric between 80 and 50 will be considered Maybe Spam, and
will trigger an action if you have the Maybe Spam option enabled.
A metric lower than 50 is considered legitimate mail.
Lenient: Reduces the possibility of false positives, but more spam
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may get through. The STA upper threshold is set to 90, and the
lower threshold to 80. Any message with a metric 90 or above will
be considered spam. A metric between 90 and 80 will be
considered Maybe Spam, and will trigger an action if you have the
Maybe Spam option enabled. A metric lower than 80 is considered
legitimate mail.
STA
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