Step 2
Multiple Spam Filtering Techniques
With integration of various Spam Detection Techniques at different stages & virus scanning, SpamBlocks filters out most of the
Spam.
Every mail is passed through 9 different stages of filtering including
Stage 1 : DNSBL/RBL filtering,
Stage 2 : Virus Scanning,
Stage 3 : Content Filtering
Stage 4 : Attachment Filtering
Stage 5 : Global Spam Database Lookup
Stage 6 : Subject filtering (user level)
Stage 7 : Black Listing Filtering (user level
Stage 8 : White Listing Filtering (user level)
Stage 9 : Autorized Sender Filtering/Challenge-Response
Stage 1 to 8 filtering ensures that most of the known spams are blocked even before they can reach your mailbox.
If Spam Mail passes these stages, it is processed through Stage 9 "Authorized Sender Filtering" which is the most effective
mail filtering technique available today.
Detailed System Overview
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