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Now you can block up to 98% of spam with industry leading low false
positive rates through the latest and most comprehensive spam filtering
and email defense technology.
Multi-layer Spam Filtering
Five is better than two. Unlike most spam filtering solutions - which
use one or two spam-classification techniques - we use a Stacked
Classification Framework(SM) – that aggregates the five most effective
spam filters and techniques in the industry.
These include:
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Bayesian Statistical Analysis – Statistical algorithms identify and
quantify the possibility that an email message is spam. Bayesian
analysis is based on how often certain spam-like elements within the
email have appeared previously in other spam emails.
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Heuristics Rules-Based Analysis - Thousands of proprietary “rules of
thumb” recognize the characteristics of spam and measure them against
incoming mail. These rules are written by threat technicians and are
updated as new spamming methods are identified.
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Distributed Checksum Clearinghouses - Takes a checksum or fingerprint,
of all email messages it sees and places those fingerprints in a
database. If the database recognizes a large number of exact matches or
at least very similar fingerprints, those messages are more likely to
be spam.
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Black and White Lists - Maintained by users, these customized lists
detail sites, individuals or IP addresses from which mail is and is not
allowed.
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HTML Shield Technology – This feature reduces the on-going influx of
spam by blocking web beacons and bugs. These are methods used by
spammers to monitor the reading of email and identify active mailboxes.
Each of these five filters dynamically calculates the spam probability
of every message. Through an aggregation and analysis of these
spam-likelihood scores, we offer an extremely effective spam blocking
solution.
All suspect emails are moved into a quarantined area. Emails identified as spam are stored in
this external area. You determine whether to remove, release or even
safely view the suspect messages. All quarantined content is accessible
through your spam quarantine report.
Keep your inbox clean!
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