Be sure to download our Spam Solutions White Paper...
Complete coverage of the spam problem and how best to get rid of it without
interfering with your regular email delivery.
The Spam Solutions White Paper covers three excellent solutions each in
spam filters, spam blockers, and spam appliances.
Download your copy here:
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choose the "Save As" option.
Otherwise, it will open in your browser window.
Get going with your anti-spam solution today.
A spam blocker system prevents the delivery of spam
to your PC or network by blocking spam before email is received.
Email is routed through a remote system which analyzes the messages
and diverts a high percentage of the incoming spam.
The primary advantage of this approach is a higher level of
protection against virus and malware attachments since they are not
allowed to reach the network or user level. Similarly, offensive
messages are also disposed of without any exposure risks.
The spam analysis rules are controlled by the spam blocking company.
Three popular solutions are available from:
• MailControl Spam
MailControl Spam from BlackSpider Technologies
is a fully managed service designed to provide companies with
the highest level of protection at a cost effective price.
This adaptive approach combined with the ability to set spam
thresholds on a domain and per-user basis, ensure that
MailControl Spam is the most effective spam filtering technology
on the market today.
The whole scanning process takes just a few seconds. Once each
message has been analyzed by the different tests, the message
receives an overall 'spam score'.
The score is then compared against the spam threshold defined by
the customer; mail scoring below the configured threshold is
delivered as normal, whilst mail scoring above is quarantined as
The MailControl Spam service works by processing e-mail through
a number of filters, which include:
• Black and White Lists
• Adaptive Spam Engine
• Real Time Black Lists
• Lexical Analysis
• Bayesian Probability
• Distributed Checksum Clearinghouse
• Collaborative Spam Databases
• Spam Traps
• Trend Analysis
Spam thresholds can be configured at a domain level and at a
user level. This approach enables administrators to 'tune' the
threshold for users who receive a significant amount of spam.
E-mail messages classified as spam can be dealt with in a number
of ways. Most customers choose to quarantine the e-mail
automatically and send a daily or weekly report to the intended
recipient listing the messages which were blocked and providing
a link back to the portal where the message can be viewed and
released if required.
Alternatively a customer may elect to receive spam, but have it
highlighted by a comment in the subject line. e.g. 'Spam:'
In summary, MailControl Spam controls the flood of unwanted
e-mail messages, increasing employee productivity, return on
assets and reducing costs.
More information is available at
Brightmail’s spam blocking solution is available
as an appliance or as server-based software. It’s used by six of
the top ten ISP’s and, as a result, filters approximately 10% of
all email. While not inexpensive, it is a high-quality solution.
Catches the Most Spam
Brightmail's complete spam defense leverages a cocktail of
effective technologies, a huge spam detection network, and a
real-time rule delivery mechanism.
• Six separate technologies target different types of spam
• Proactive heuristic and machine learning technologies trap
• Patented spam signatures stop real-time spam attacks
• Dynamic list of open proxy servers identifies & locks out
known senders of spam
• Intelligent filters identify foreign language spam
False positives (messages incorrectly identified as spam) cause
users to lose faith in spam blocking. From day one, Brightmail
has had an unwavering commitment to protecting legitimate mail.
Many Brightmail customers feel comfortable deleting spam without
• Automated and manual safeguards
• Support for false positive submissions
• Review (by a Brightmail technician) of every false positive
• Corrected rules deployed globally within minutes
• Only introduces a new technology after it has passed rigorous
Many anti-spam solutions place even more burden on
administrators. Immediately effective out-of-the box and
constantly updated, Brightmail doesn't require any tuning or
training of filters by administrators.
• 24/7/365 protection from new spam attacks
• Automatic, timely, secure updates
• New filters available every 10 minutes
• Global anti-spam operations centers in the US, Ireland and
• Real time visibility of new spam trends
• No ongoing tuning or training of filters
More information is available at
Postini’s spam blocking service utilizes an
intermediate step in email delivery, passing all incoming and
outgoing mail through Postini’s data center.
Postini™ services secure and manage email systems, without the
need for software or hardware. Using patent-pending pass-through
technology (versus store-and-forward methods), email bound for a
company's email server is processed in real-time through a
highly secure service architecture.
Within milliseconds, Postini's award-winning email security
solution separates spam and viruses from legitimate messages.
Legitimate email is instantly passed on to the destination mail
server. Suspicious email can either be quarantined in a
web-based, password-protected message center for administrator
or end-user review, or tagged and delivered. The entire process
is fully automated — valid emails pass through and cannot be
physically accessed by any persons other than the recipient.
Postini™ now offers Perimeter Manager Enterprise Edition, our
flagship email security service. Enterprise Edition is the
next-generation in email security, utilizing revolutionary
patent pending technology including Postini Industry
Heuristics™, outbound and policy management, and integrated
disaster recovery services. Enterprise Edition comes with the
industry's best service commitment – a 99.999% service level
agreement, and now also includes full 24/7 customer support.
With Enterprise Edition, you can:
• Block malicious or unwanted email messages before they
penetrate the corporate firewall, improving employee
productivity, minimizing IT management and maintenance costs,
saving bandwidth, server and disk capacity, while keeping
security threats away from the network.
• Maximize email filter accuracy and minimize false positives
with patent-pending Postini Industry Heuristics™, industry and
function specific heuristics-based analysis technology that
enables the creation of content filters specific to industries
and functions such as law and financial services, and from
'trusted networks' of senders based on proprietary Postini
knowledge of SMTP content and transport patterns in these
• Filter outbound email and implement policy controls with
full-duplex security and content-management tools, giving IT
administrators the tools to lock down and protect all aspects of
the corporate email system. Filter all outgoing email
communications for viruses and other policy violations.
• Maintain and protect the integrity of the enterprise email
infrastructure with an integrated disaster recovery service. If
your email server ever goes offline due to a break in network
connectivity, or server malfunction or overload, Postini will
step in seamlessly and redirect all incoming email to a secure,
architecturally redundant message store at the Postini data
centers until connectivity is restored.
• Enhance productivity by providing end-users with an html-based
Quarantine Summary Report. This report eliminates the need to
log-in and review messages in the Postini Message Center.
• Gain exceptional management and system-level control over your
email infrastructure to ensure the highest levels of trust,
reliability, flexibility and security. Postini's extensive
reporting and management capabilities allow email system
administrators to monitor the Postini service and their entire
email infrastructure in real-time, regardless of server platform
or system topology.
More information is available at
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