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Spam takes a variety of forms, from HTML and image-rich messages to plain text and can fool text-searching anti spam filter programs with intentionally misspelled words, faked sites, and bogus offers. Sometimes, the real problem in spam lies not in the message body but in its attachments, like spyware, viruses or other executables.
There are several different theories for anti spam filter systems. Aggressive methods attract spam messages; passive methods rely on blacklists or content rules. LivePrism has two benefits over installing anti spam filter software on a workstation (which addresses spam after its delivered) or on a mail server: LivePrism provides a variety of different anti spam filter sets for different targets, and LivePrism is a hosted system, so spam can be quarantined before it ever reaches your businesss network. |
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LivePrism integrates cascading series of three major types of anti spam filter sets to address each kind of threat:
- Spam identification filters. LivePrism incorporates a reputation filter, which heuristically analyzes a message and ranks its likelihood of being spam, with an industry-leading anti spam filter, which looks for known spam messages as well as spam characteristics, like mismatched URLs or email addresses and sender profile framework (SPF) servers.
- Configurable policy controls. LivePrism anti spam filter system allows administrators to set rules on email content (regular expression-based content filtering) and attachment type and size, so that businesses have direct control over email content. LivePrism also allows users to set their own anti spam filter set through blacklists and white lists, which allow or block email sent from specified domains.
- Virus scanners look for known viruses, spyware, and other forms of malicious software.
LivePrism hosts its own mail servers, monitoring systems, and scanning software, so the LivePrism network is the first point of contact for spam. LivePrism monitors every message that comes into your network and runs each through a series of anti spam filter sets. If something in the message triggers an anti spam filter, the message is sent to quarantine which can be reviewed safely over the web by admins and users before ever being routed to the mail server and sent to your employees. |
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