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Support
SPAM Filtering
Spam emails can be a problem for any business.
When users are inundated with spam this can seriously effect the
performance of your network as, even though the majority of these
emails are not legitimate, they still need to be processessed by
a server and this creates a 'bottle neck' effect when hundreds,
maybe thousands of emails are trying to squeeze their way through
your system. Our offsite spam management system prevents this bottle
neck effect from happening as we process the spam, along with any
viruses that come with it, and pass it through multiple antivirus
systems which results in many benefits for your business, such as
band width savings, for example.
Signal Networks managed antispam systems ensure
the most comprehensive response to threats via email. Our antispam
system allows you to offload the burden of spam to our high speed
'colo', offering protection from Viruses, Spam, Malware, Phishing
and any unwanted content. The solution uses the best available technologies
to provide an easily installed, easily managed and highly secure
solution for your email. This level of spam filtering is included
within every support contract.
- Effective Spam Filter - 98.5% spam blocked
- Includes two AntiVirus Solutions - Kaspersky and ClamAV
- End User Spam Quarantine and digest
- Email content controls
- Disclaimers on email
- In and outward bound email scanning
- Unlimited domains supported
- Full automated reporting suite
Anti-Virus Filter:
When a virus is sent within email it contains a virus signature
e.g.' X5O!P%@AP...'. Anti-virus Signature Database (AVSD) 1 will
then attempt to match the virus signature to its database. If
it is successful, it will delete the virus. If not, the virus
will move onto AVSD2 and so on. The reason that one vendor may
miss a virus is because the update mechanisms of each vendor work
at different speeds - so the most out of date vendors will miss
the most up to date virus.

Anti-Spam Filter:
After the mail has passed through the AV management
system, it then passes through the multi-layered anti-spam analysis
in order for any spam emails to be removed. The legitimate emails
are then passed onto the customer server. However, we do suggest
that an extra AV vendor is added to the customer server to dispose
of any viruses that may have been missed.

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