Content Scanning identifies spam based on the content
of the message rather than the originating IP. The Messaging Security
Agent uses the Trend Micro anti-spam engine and spam pattern files
to screen each email message for spam before delivering it to the
Information Store. The Microsoft Exchange server will not process
rejected spam mail and the messages do not end up in the user’s mailboxes.
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NoteDo not confuse Content Scanning (anti-spam based on signatures
and heuristics) with Content Filtering (email scanning and blocking
based on categorized keywords). See Content Filtering.
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