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How To Configure an Anti-Spam Policy with Mail Scan and
DNSBL
This is an example of using ZyWALL/USG UTM Profile to mark or discard spam
(unsolicited commercial or junk e-mail). Use the Anti-Spam white list to identify
legitimate e-mail. Use the Anti-Spam black list to identify spam e-mail. The
ZyWALL/USG can also check e-mail against a DNS Black List (DNSBL) of IP
addresses of servers that are suspected of being used by spammers.
ZyWALL/USG with Anti-Spam Profile to mark or discard spam e-mail Example
Note: All network IP addresses and subnet masks are used as examples in this article.
Please replace them with your actual network IP addresses and subnet masks. This
example was tested using USG310 (Firmware Version: ZLD 4.25).
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