|What it Sets/Changes
|Messages to be checked
|This option specifies the mails to be checked by the spam check program.
|Maximum size of the checked messages
|To eliminate system load, messages larger than this size won't be passed to the spam check program (in KB).
|Treshold to determine Spam
spam check program is assumed to return a spam level of a message and
messages with spam level equal or larger than this threshold willbe treated as spam.