Choosing the Aggression Level

Aggression level, if to go into details a bit, defines a decision making on whether an email should be treated as junk or not. Changing the aggression level influences two characteristics of filtering:

• Effectiveness. That indicates the percentage of emails detected as junk.
• Accuracy. That indicates the ability to distinguish legitimate emails from junk. The accuracy is determined as the false positive rate. The less accuracy is, the higher false positive rate is and the more legitimate emails will be treated as junk.

To change the aggression, click the Main Page tab and set the Aggression level slider to the desired position:

• High. Set this level, if you see more junk emails income undetected. The downside is that the probability of the legitimate emails treated as junk is increased that's why you should use the black and white lists of e-mail addresses with this level.
• Normal. The effectiveness-accuracy ratio is optimal. Setting this level, you rely on the most comfortable values of effectiveness and accuracy AVS Antispam suggests.
• Low. Set this level, if you see more legitimate emails are treated as junk. The downside is that the probability of junk email incoming undetected is increased.