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Details: Spam
Filter Gateway is to implement for third party
SMTP servers: Spam Filtering.
SPAMFilter Gateway is implementation is very
simple. Its use is designed for owner's and
companies running their SMTP servers, not
end-users. SPAMFilter GateWay is designed to be
your incoming SMTP server.
It receives all emails addressed to your
domain(s). If the sender's IP is not listed in
one or multiple DNS-based block lists, if
Bayesian statistical analysis of the email
suggests it is not spam, and the email content
passes your keyword tests, the email is then
forwarded to your main SMTP server. End-users
have web access to their own quarantined emails.
Spam-free emails are then forwarded to your SMTP
server(s). Please look at the "how it works"
details for more information on all of our
additional anti spam features.
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Blacklisting of websites &
domains: SpamFilter maintains an up to date
list of the largest and most aggressive known
spammers. This list is maintained by both
SpamFilter and other anti-spam groups. This list
is automatically updated on each SpamFilter Spam
Firewall.
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Keyword scanning of emails:
Our scanning methods include a scoring system
such that emails are scored based on a number of
criteria. If the score is above a threshold,
then that email is flagged as spam. The
SpamFilter team constantly monitors and updates
these keywords based on current activity so
there is virtually no lost messages.
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Checksum technology:
SpamFilter monitors email traffic through the
Internet and uses checksum technology to keep
track of the number of times a particular
message has appeared on the Internet. If a
message has appeared over a certain number of
times, it is categorized as known spam.
Checksums of known spam messages are utilized by
SpamFilter to block spam messages.
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Message authenticity
checking: Several algorithms are utilized to
verify the authenticity of a message. Some of
these are simple checks to verify that the from
address is authentic. Some are more complex
relating to SMTP protocol.
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Blacklists and Whitelists:
Domains, IPs, and email addresses can be
blocked or whitelisted (allowed through).
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Rate controls: Utilized
to stop denial of service attacks as well as
dictionary based spam attacks. These are
integrated in SpamFilter.
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File type attachment
blocking: Known malicious file types are
blocked from entering your e-mail. These
attachments are also scanned using the built-in
Anti-Virus protection.
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Anti-Virus Protection: In
addition to anti-spam protection, SpamFilter
provides protection against e-mail based threats
such as malicious viruses and worms, which is
where 95%+ of the viruses originate. This
additional measure it built-in to our service
and updates on a hourly basis to ensure the
latest defenitions are in place. |
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| *not
applicable for catchall and nobody email
account |
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