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email into the Inbox folder and spam email into the
Junk folder or the Norton AntiSpam folder.
Norton AntiSpam uses Symantec enterprise-class,
spam-filtering technology to classify the spam email
messages from legitimate email messages. Norton
AntiSpam uses a real-time filter delivery mechanism
and filters email messages using various local filters
at different levels. The local filters classify the email
messages as spam or legitimate. If the local filters
classify the email message as legitimate, Norton
AntiSpam collects information such as signature and
URL hashes of the email message. Norton AntiSpam
then sends this information to the Symantec Web
server for additional analysis.
When theemail message isclassified as spam, Norton
AntiSpam changes the subject of the email message
and sends it to your email client. The email client
identifies the change in the subject of the email
message andmoves itto the Junkfolder orthe Norton
AntiSpam folder.
The Norton AntiSpam local filters use Whitelist
technique, Blacklist technique, and patented filtering
technology to classify email messages as spam or
legitimate.Forthesefilterstoworkefficiently,Norton
AntiSpam requires antispam definition updates at
regular intervals through LiveUpdate. These updates
contain signatureinformation of spamand legitimate
emailmessages.Theupdatesalsocontainanynewrule
that Symantec creates to filter spam email messages.
Norton AntiSpamuses predefined email rulesand the
user-definedAllowedListandBlockedList,toexpedite
the scanningof email. It acceptsemail messages from
the list of allowed email senders and blocks email
messages from the list of blocked email senders.
Norton AntiSpam also automatically importsthe lists
of addresses from supported email programs during
the initial integration. It helps you keep your list of
allowed and blocked email senders in sync with your
currentaddressbooks.WhenNortonAntiSpamimports
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