Architecture - Symantec 10490452 - Mail Security 8220 Administration Manual

Architecture

Symantec Mail Security for SMTP processes a mail message as follows. For the
sake of discussion, our sample message passes through the Filtering Engine to
the Transformation Engine without being rejected.
The incoming connection arrives at the inbound MTA via TCP/IP.
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The inbound MTA accepts the connection and moves the message to its
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inbound queue.
The Filtering Hub accepts a copy of the message for filtering.
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Architecture