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Mailscreen Spam Blocking

Your messaging system requires around-the-clock protection from today's email-borne threats, which are capable of instantaneously derailing critical business communications.

Mailscreen, powered by McAfee® can help you fight back against the constant barrage of unsolicited email with a unique anti-spam system that has proven effective in blocking over 99 percent of all spam. Mailscreen identifies, quarantines, blocks and strips suspect email messages at the network perimeter, before they can enter your messaging infrastructure.

Using a unique multilayered strategy, the patented Stacked Classification Framework® spam detection system combines the most effective spam-fighting techniques, and is continually updated to defend against the latest spam threats.

These diverse filters separately assess and "vote" on the probability that a specific email is spam - a technique that results in highly-accurate threat protection with industry-leading low false positive rates (legitimate email misidentified as spam).

Messages that are identified as spam are blocked and delivered to a safe, external quarantine, which can be accessed, depending on your preference, by email administrators or end-users via regularly emailed Spam Quarantine Reports.

Calculate the Cost of Spam

Find out how much spam is costing your organization with our Spam Cost Calculator.

Main Features and Benefits

Mailscreen Spam Blocking can protect your networks from the damaging effects of spam, helping you to slash IT costs associated with processing and storing unwanted emails, increase employee productivity, and limit legal liability.

  • Eliminate over 99 percent of spam
  • Reduce spam related costs by 90 percent
  • Incorporate effortless policy-setting and administration
  • Increase employee productivity and control
  • Safeguard business integrity
  • Achieve industry-leading low false positive rates

Key features of Mailscreen Spam Blocking include:

  • Multi-layered anti-spam technology, updated continuously to block the latest threats
  • Premium Anti-Spam Multi-Language Filters
  • Fully customizable allow and deny lists
  • Group policies management for customizing policies to meet the unique needs of user groups
  • A sophisticated, safe external quarantine that allows end users to customize filtering policies and confirm the legitimacy of filtered messages
  • ClickProtect, which enables organizations to further protect the network by monitoring whether employees are clicking on websites that violate network security
  • Around-the-clock monitoring and protection

A closer look

Primary to the effectiveness of the Mailscreen Email Defense Service is McAfee®’s Stacked Classification Framework® spam detection system, which is powered by patented technology and combines the most effective spam-fighting filters and techniques in the industry:

  • IP Reputation Connection Manager: This filter operates at the front of the Stacked Classification Framework and rates the reputation of every incoming message, based on IP reputation data collected on an on-going basis by Mailscreen. Connections are dropped for all messages which originate from IP addresses that are determined to carry a reputation for sending spam
  • Premium Anti-Spam Multi-Language: This filter provides Mailscreen with a global view of spam traffic, which enables Mailscreen to defend against real-time spam attacks and rapidly identify zero-hour spam, regardless of language. The filter is also effective at identifying image-based spam and phishing emails, and is continually updated based on real-time feedback provided by a global network of users.
  • Statistical Filtering: Mailscreen's probabilistic filtering utilizes a statistical Bayesian algorithm to determine the probability that an email message is spam based on how often elements in that message have appeared in other spam emails.
  • Sender Policy Framework (SPF)/Sender ID - For inbound messages, Mailscreen can check if the message has an associated SPF/Sender ID record. If there is an SPF/Sender ID record, it can help determine if the email sender’s domain is from a list of IP addresses authorized to send email from that domain.
  • Industry Heuristics: Mailscreen incorporates thousands of successful industry-wide spam-fighting rules into its filtering layers.
  • Proprietary Heurstics: Mailscreen’s experts write and update thousands of proprietary rules to block spam using real-time data from the Mailscreen powered by McAfee®® Threat Center.
  • Reputation Analysis: Like allow and deny lists, reputation analysis blocks spam based on comprehensive information about the source of the message - rating the reputation of the sender based upon the percentage of spam messages sent from that IP address in the past.
  • URL filtering: URL filtering works by comparing embedded links found in email messages with URLs associated with identified spam.
  • Reputation-based RBL filtering: Mailscreen assigns a level of trust to key real-time blackhole lists (RBL), which rates the reputation of the RBL based on its accuracy at blocking spam.

Additional filters increase protection

Mailscreen employs other filters to ensure that your email is virtually free of spam including the following domain-level allow and deny lists and distributed black lists:

  • Domain-level allow and deny lists: Specifically designed to protect against spam, inappropriate content, and email attacks, domain-level allow and deny lists filter and block unsolicited messages.
  • Distributed black lists: Distributed black lists comprise a number of real-time subscription services including the Mail Abuse Prevention System (MAPS) and Mailscreen's own global deny lists, which include multiple lists of known spammers and their IP addresses.
  • Recipient deny lists (Address): This type of filtering is designed specifically to filter for content and relieve network servers from attempting repeatedly to deliver mail to invalid addresses.
  • User-level allow and deny lists: Through regularly-delivered Mailscreen Spam Quarantine Reports, end users have the flexibility to develop their own, personal allow and deny lists.

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If you are interested to find out more how Mailscreen can help your organization to increase your email security, call us at +46-8-544 406 00 or enter your contact details into our contact form.