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Sophos PureMessage prevents spam and viruses from entering your
company, and allows you to enforce a communications policy across
your business. Sophos PureMessage is the ideal consolidated solution
for large organizations who wish to protect against viruses and
spam.
PureMessage's industry-leading anti-spam
technology safely identifies up to 98% of spam, resulting in inboxes
free of unsolicited bulk emails. Flexible configuration options
allow businesses to uniquely define their spam identification and
handling policies (e.g. delete, quarantine, archive). PureMessage
also checks all email traffic passing through your email server,
providing an extra layer of protection against mass-mailing worms
and viruses. This means viruses can be stopped from entering your
company at the gateway and spreading throughout your network.
PureMessage's policy enforcement technology allows companies to
tackle the problems of email misuse (such as confidentiality
breaches, legal liability, lost productivity and damage to
reputation). Sophos PureMessage is the ideal consolidated solution
for large organizations who wish to protect against viruses and
spam.

Enterprise Email Protection
Driven by mounting pressures to ensure a secure and low-cost
infrastructure, organizations are increasingly demanding
single-point protection against security threats such as viruses,
spam, and policy breaches.
PureMessage Features
- Multi-faceted threat protection -
Leverage policies that combine anti-spam, anti-virus, and policy
enforcement, to protect against multi-faceted spam, virus, DHA
and DoS attacks—such as the Sobig email-borne virus and DoS
email attacks—as they arise.
- Leading anti-virus protection -
Prevent malicious code from entering or spreading via email.
Scan for all known and unknown viruses, with automatic updates
for up-to-the-minute protection.
- Leading anti-spam protection -
Remove up to 98% of spam from the message stream at the gateway,
using a balanced combination of tests to separate spam from
legitimate mail.
- Robust policy enforcement -
Ensure policy compliance with over 30 pre-bundled
message-handling tests, rules, and actions, for easily defining
and enforcing acceptable use and receipt policies at the
gateway.
- Innovative technical leadership -
The first enterprise solution to provide adaptive spam
filtering, destination URL filtering, image spam protection,
quarantine digests, and policy management interface.
- Automatic updates -
Anti-virus and anti-spam updates are automatically delivered and
seamlessly deployed as new threats arise.
- Distributed administration -
Easily assign administrative access privileges (e.g. quarantine
management, monitoring, and reporting).
- Central Server Management -
Centralize configuration, synchronization, and reporting across
multiple mail servers.
- Perimeter protection -
Monitor the velocity of inbound and outbound connections,
automatically taking action when suspicious traffic patterns are
detected.
Anti-Virus Protection
Research shows that your business is more likely to receive a
virus through your email gateway than through any other route.
Sophos PureMessage checks all email traffic passing through your
email server in real-time, providing protection against mass-mailing
worms and viruses, including the latest multi-faceted attacks that
combine virus, spam and DoS attacks. Viruses are stopped at the
gateway, before they can proliferate within a corporate network.
Sophisticated threat reduction technology provides a powerful
ability to prevent even new, unknown email-aware worms from entering
your business without having to update your anti-virus solution.
PureMessage automatically checks executable content and files in
email for malicious code and applies the appropriate policy to
handle the message actions for fast and reliable protection.
- Safeguard intellectual property from damage by virus attacks
- Protect your network and other assets from virus attack in
real-time
- Protect reputations by guarding against delivery of a virus to
a partner or customer
Real-time protection from:
- Virus-driven email outbreaks
- Worms
- Viruses
- Trojans
- Malicious code
- Suspicious attachments
Advantages
- Multi-faceted protection - Establish automatic policies that protect against multi-faceted
spam, virus, DHA and DoS attacks—such as the Sobig email-borne
virus and DoS email attacks—as they arise
- Outbreak protection -
Message velocity monitoring detects and protects against
virus-driven DoS type attacks and behavior, shielding
organizations from infection and server outages during virus
outbreaks
- Easily deployed gatewy protection - Gateway level virus protection simplifies deployment. Users
within the network are automatically protected, and all outbound
email is automatically scanned from one central location.
Organizations stay up-to-date and protected, even when
individual workstations are not.
- Automatic updates -
Automatic virus signature updates of continuously protect
against the latest threats.
- Flexible virus handling -
Define virus handling as part of an overall message handling
policy. Virus cleaning ensures message delivery while preventing
transmission.
Anti-Spam Protection
PureMessage can effectively stop spam during the delivery
process, eliminating the productivity loss, liability exposure, and
resource drain that accompanies unsolicited email.
Industry-leading anti-spam technology safely removes up to 98% of
spam at the gateway, using a balanced combination of the latest,
most effective anti-spam technologies. Quarantine digests remove
administrative intervention to retrieve valid messages blocked by
spam filters, eliminating the business impact of false positives.
- Maximize administrative efficiency
- Increase corporate productivity through efficient email usage
- Improve network resource and bandwidth usage, mail server load
and storage demand
- Protect your organization from potential 'hostile environment'
lawsuits
Real-time protection from:
- Open proxies and relays
- Dial-up account spamming
- Known spammers
- Current spam campaigns
- Image spam
- HTML obfuscations
Advantages
- Effective spam protection
Safely remove up to 98% of spam from the message stream at the
gateway.
- Eliminates the business impact of false positives -
Quarantine digests enable end users to retrieve valid messages
blocked by spam filters, eliminating the business impact of
false positives. The digests provide end users with convenient
access to their quarantined messages through their email inbox,
without administrative intervention or additional tools.
- Automatic updates -
Daily updates automate protection against new spam messages and
evolving spam techniques.
- Comprehensive spam detection -
"Cocktail" approach combines multiple techniques into
a single spam probability, for increased accuracy over easily
defeated single technique or layered methodologies.
- Cutting-edge technology -
Innovative research from the PureMessage Anti-spam Task Force
protects users with with the latest, most effective spam
protection techniques, including recent PureMessage innovations:
destination URL filtering and adaptive gateway filtering.
- Unmatched spam handling flexibility -
Combining tests to determine an overall spam probability affords
greater control and flexibility in spam handling and tuning
precision. Customizable user preferences and
privileges—including user-specific opt-in/out privileges,
thresholds, digests and spam handling preferences—deliver
unmatched flexibility.
- Proprietary spam detection -
Spam identification tests are not publicly available or running
on large public email systems. Spammers have no visibility into
mail filtering, reducing their ability to innovate against
PureMessage detection techniques.
Policy Enforcement
The flexible Sophos PureMessage policy manager is a set of
proactive internal controls for ensuring compliance, enabling
organizations to easily define, configure, monitor, and enforce
their message handling policies. The powerful RFC 3028-compliant
policy framework enables organizations to define, control and
enforce their message handling policies. Administrators can
configure the framework with ready-to-implement tests, rules, and
actions to meet their specific policy needs.
- Ensure compliance with regulatory agencies and commissions
- Protect against liability exposure from inappropriate
communications
- Protect against internal security breaches and external
attacks
Real-time protection from:
- Confidentiality breaches
- Legal liability
- Lost productivity
- Damage to reputation
- Acceptable use policy risks
- Regulatory compliance risks
Advantages
- Integrated policy management
Multiple, integrated spam, virus, and acceptable use policies
provide a single policy management interface for both inbound
and outbound messages.
- Sieve-based email policy
Policy management is built on top of a powerful, RFC
3028-compliant Sieve-based policy platform, enabling
administrators to define policies of appropriate complexity.
- Policy builder interface
Configuration GUI streamlines definition of organizational
message handling policies.
- Ready to implement policies
Includes over 30 pre-bundled tests, actions, and configuration
mechanisms for spam, virus, and most common email policies.
- Flexible policy framework
Hierarchical framework configured to include multiple tests and
multiple actions enables organizations to easily calibrate
enforcement techniques.
- Perimeter protection
Monitors the velocity of gateway connections for anomalous
traffic patterns and adjusts automatically based on attack
severity.
- Content based routing or archiving
Messages can be automatically analyzed, routed to the
appropriate recipients, and archived in compliance with
regulatory requirements.
Sophos PureMessage can be administered through the PureMessage
Manager, an easy-to-use web console providing an integrated
interface for managing policies and configuration information,
accessing the quarantine, and reporting on activity.
Administrative features:
- Integrated management of the PureMessage system
- Consolidated configuration of all filters, tests, and policy
actions
- Granular control of filtering preferences
- Anti-spam rule tuning
- Monitoring service activity and availability
- Scheduling auto-updates
- Quarantine management
- Reporting
- Multi-server synchronization
Powerful Policy Builder
The PureMessage Policy Manager features a flexible, easy-to-use
web-based interface for managing and testing the overall PureMessage
filtering policy, including specifying the behavior and order of
rules and actions applied to messages. Using the manager,
administrators can use PureMessage's ready-to-implement message
handling tests, rules, and actions to easily configure and enforce
organization-specific policies.
Quarantine Management
Quarantine Manager
Using the Quarantine Manager, administrators can search and
review spam or virus-laden messages and take further action as
desired, including archiving, approving for delivery, forwarding,
and deletion.
Quarantine Digests
Quarantine Digests keep spam messages out of the mail
infrastructure, and enable end users to easily review and release
blocked messages, eliminating the business impact of false
positives. End users receive scheduled summaries of quarantined
messages that they can review and release from their email client,
without administrative intervention or additional tools.
Reporting
PureMessage reporting provides measurable feedback on message
filtering activity. Reports monitor filter activity through visual,
scheduled, and exportable data for the message stream and quarantine
contents.
Centralized Server Management
Central server management simplifies administration by
synchronizing servers, consolidating reporting, and enabling
multiple servers to share a single configuration in multiple-server
environments.
System Requirements
Hardware
150MB hard disk space (includes space for Perl and sendmail
installations)
1GB memory minimum
100Mbit network or better (if using PureMessage via network)
Operating Systems
Linux on x86 (RedHat 6.0 or later, or Debian 2.1 or later)
Solaris on sparc (2.6 or later)
HP-UX on PA_RISC1.1 (11.0 or later)
FreeBSD on x86 (4.1-RELEASE or later)
AIX on RISC (4.3.3 or later)
PureMessage provides interoperability with any corporate email
system. In addition to native support for sendmail, PureMessage acts
as an email gateway and can be deployed for use with any existing
MTA.
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