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is considered as spam. Anti-Spam refers to this
database to identify e-mails and takes action on them.
Enable Sender Policy Framework (SPF) check: SPF is a
world-standard framework that is adopted by eScan to prevent
hackers from forging sender addresses. It acts a powerful
mechanism for controlling phishing mails. You should select
this check box if you need Anti-Spam to check the SPF record of
the sender’s domain. However, your computer should be
connected to the Internet for this option to work.
Enable Spam URI Realtime Blacklist (SURBL) check: You
should select this option if you need Anti-Spam to check the
URLs in the message body of an e- mail. If the URL is listed in
the SURBL site, the e-mail will be blocked from being
downloaded. However, your computer should be connected to
the Internet for this option to work.
Enable Realtime Blackhole List (RBL) check: You should select
this option if you need Anti-Spam to check the sender’s IP
address in the RBL sites. If the sender IP address is blacklisted in
the RBL site, the e-mail will be blocked from being downloaded.
However, your computer should be connected to the Internet
for this option to work.
RBL Servers: RBL is a DNS server that lists IP addresses of
known spam senders. If the IP of the sender is found in any of
the blacklisted categories, the connection is terminated. The RBL
Servers list contains addresses of servers and sites that maintain
information regarding spammers. You can add or change
addresses to this list as per your requirements.
Auto-Spam Whitelist: Unlike normal RBLs, SURBL scans
e-mails for names or URLs of spam Web sites in the message
body. It terminates the connection if the IP of the sender is
found in any of the blacklisted categories. This contains a list of
valid e-mail addresses that can bypass the above Spam filtering
options. It thus allows e-mails from the whitelist to be
downloaded to the recipient’s inbox.
Note: If you have a direct connection to the Internet, the Enable Spam
URI Realtime Blacklist (SURBL) check and Enable Realtime
Blackhole List (RBL) check check boxes will be enabled.
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