ZyXEL Communications ZYWALL 5 - Page 232

ZyWALL 5 Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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In ANTI-SPAM -> External DB, check Enable External Database with adjusting the threshold scroll bar
which let external database help IT staff to adjudge whether the POP3/SMTP mails are phishing mails or not.
TIPS:To activate the “External DB” option, the ANTI-SPAM service must be registered at first.