Spam Scores Concept
One of the first things you need to understand is the Spam Score concept.
As IceWarp Server processes messages with its many Antispam technologies and checks, it modifies a Spam Score value dependent on the results of each test.
The Spam Score is a value from 0.00 to 10.00 that indicates the probability that the message is a spam, with 10.00 being an indication that the message is very likely to be a spam.
Some of the settings within IceWarp Server allow you to set a value to modify the Spam Score (for example Content Checks). The value you enter in this section is the amount that IceWarp Server will modify the Spam Score by. So if you enter 1.5 for Score message containing blank subject and blank body, the Spam Score will be increased by 1.5 if that test evaluates as true.