For IMSS to
scan POP3 traffic, a firewall must be installed on the network and
configured to block POP3 requests from all computers except IMSS.
This configuration ensures that all POP3 traffic passes through
the firewall to IMSS and
that only IMSS scans the
POP3 traffic.
NoteIf you disable POP3 scanning, your clients cannot receive
POP3 mail.
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