Top Ten Things About Spam Firewalls

Short Description
A spam firewall is a single box computing appliance that is set up in front of the email server. This appliance receives all the …

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Content
What is a spam firewall? ______________________________________________________________
A spam firewall is a single box computing appliance that is set up in front of the email server. This appliance receives all the
incoming email for the organization and processes it such that only the good email is passed on to the email server. A spam firewall
is normally built on a hardened operating system based on Linux or BSD. However, some vendors do make solutions based on other
operating systems. The appliance format and the hardened operating system make the spam firewall less susceptible to hackers and
other threats. A proper spam firewall protects the email server from all forms of attack in addition to filtering spam.
What does a spam firewall do? _________________________________________________________
At the most basic level, a spam firewall blocks unwanted email from entering the network and reaching the email server. This is
accomplished using a multi-layered filtering solution. Some spam firewalls use only a single technology for eliminating spam. However,
this is not preferred since spammers find it easier to work around a single technology.
What does a spam firewall not do? ______________________________________________________
In most cases spam firewalls are designed to block inbound spam. Spam firewalls do…