These flags govern which filter elements are enabled. The indented options will not run if the parent option is disabled.
Filter Control
Which messages are to be filtered
No filtering
Do not filter messages from Whitelisted addresses
Do not filter messages from Authenticated addresses
Do not filter messages from Authenticated or Whitelisted addresses
Filter all messages
When filtering
Options that are applied to messages that to be filtered
Filter message content :
The action to be when messages have text or HTML components
Do not filter message content
Apply policy rules
Filter attachments :
The action to be taken when attachments are included in a message Do not filter attachments
Apply attachment filter to messages
Apply attachment filter and purge HTML scripts from messages
Check messages against UBEBlock+ database :
This option causes the messages to be checked with UBEBlock+ database. This causes a deeper message scan to occur looking for content that is known to be from spam sources.