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Multi-layer Spam Filtering

As spammers become more sophisticated, so too must spam filtering technology. The spam filtering included with the Domainmonster.com Spam & Virus Protection product uses five different kinds of filtering to ensure that more than 98% of unwanted or dangerous emails are quarantined, whilst maintaining an industry-leading low for false positives (emails incorrectly marked as spam or dangerous). This system is called a Stacked Classification Framework. The five filters we use are:

• Bayesian Statistical Analysis - a filter which you train for your specific needs to mark emails as spam which contain certain terms, and to allow others which contain trusted words.
• Heuristics Rule-Based Analysis - incoming emails are tested against up-to-the-minute spam rules of thumb which are created by experts on a daily basis, to root out even the newest types of spam.
• Distributed Checksum Clearinghouse (DCC) – your emails are each checked against a list to see if anyone else has marked them as spam.
• Black and White Lists - you can personally specify lists of trusted and prohibited email addresses, domains and IP addresses, so that the emails you want will always get through, whilst any harassing emails will be left at the door.
• HTML Shield Technology - spammers' HTML code which tells the spammer that your mailbox is active, thus making you a more attractive spam target, is prevented from running.

Our Spam & Virus Protection product also protects you against phishing emails.

Each of these five filters dynamically calculates the likelihood of each message you receive being spam. Through an aggregation and analysis of these spam-likelihood scores, we offer an extremely effective spam blocking solution.

All suspect emails are moved into a quarantined area. Emails identified as spam are stored in this external area. You determine whether to remove, release, or even safely view the suspect messages. All quarantined content is accessible through your spam quarantine report.

Email Protection - Quarantine  Virus and Worm Scanning  Multi-layer Spam Filtering
Content & Attachment Filtering  Administrative Control

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