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Junk Email
Filtering (Spam)
"GFI Mail Essentials" is a
powerful software product that
installs on your email server,
intercepting and scanning all
inbound email traffic looking
for junk mail (often called
Spam). Mail Essentials
applies several
highly-configurable rule sets
against every email, looking for
pre-defined keywords in the
subject or body (or both).
If the email is determined to be
"junk", the email is rerouted to
a quarantine or deleted,
depending on the settings of the
software. |
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Filter List
for GFI Mail Essentials |
As messages
enter your email system, Mail
Essentials intercepts and scans
the content of each message,
looking for any one of several
red flags.
For instance, if the email says
that it is being sent from "honda.com",
the Sender Policy Framework
module checks to see if the
originating IP address of the
server matches what is on file
at the Internet's Domain Name
Service (much like Caller ID on
a telephone). If the entry
matches, the email is forwarded
on to the next filter. If
not, the email is quarantined.
The user never knows that a junk
email was sent to them.
If the message passes all of the
tests, the email is delivered to
the intended recipient.
You can add your business
partner and customer domains to
the "Whitelist", guaranteeing
that any message sent from their
email domain will pass through.
On the contrary, any email
address or domain added to the
"Custom Blacklist" will be
stopped immediately, no matter
what the content.
With yearly paid maintenance,
Mail Essentials will also update
itself with several large
anti-spam lists, further
protecting your email from known
or reported spammers.
The quarantine can be tuned
considerably, with different
behaviors for different filters. |
This product will
solve your spam problem at a
ridiculously low price. Pricing is
provided by GFI based on the number of
mailboxes being protected.
Although we are not allowed to quote
their prices on this website, you will
be amazed at how inexpensive this
product is.
One example of how clever Spammers
have become
One company that has this package
deployed reports that over 77,000 emails
are sent to their email server every
week. Of those 77,000,
approximately 98% are sent to mailboxes
that do not exist using a practice
called "Directory Harvesting". A
spam robot uses the alphabet and a
preset list of common last names to look
for live email addresses. Starting
with asmith, on to bsmith,
then csmith, and so on.
Most email systems (not a good practice)
will respond with a "Non Delivery
Report" (NDR) back to the sender for all
of the bogus emails. The spam
robot keeps a list of NDR recipients.
When the robot compares the list of
deliveries against the NDR, bang!
They've just harvested their first live
addresses! Emails without NDR's
represent live mailboxes.
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Next week,
there will be hundreds of emails
targeted to that "live" address.
Mail Essentials destroys that
capability by automatically
dropping all emails that don't
match legitimate recipients.
No NDR is sent, by design.
The spammer never knows if the
email box is live or
nonexistent. This is just
one of the ways Mail Essentials
can save your company loads of
previously wasted time (wading
through junk email every day),
protect your network user's
email identities, and
drastically reduce the amount of
email your system stores for
each user. |
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