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InterScan Messaging Security

The industry’s most comprehensive mail gateway security

Trend Micro™ InterScan™ Messaging Security stops traditional threats in the cloud with global threat intelligence, protects your data with data loss prevention and encryption, and identifies targeted email attacks and APTs as part of the Trend Micro™ Custom Defence Solution. The hybrid SaaS deployment combines the privacy and control of an on-premise virtual appliance with the proactive protection of a cloud-based pre-filter service. It’s the enterprise-level protection you need with the highest spam and phishing detection rates—consistently #1 in quarterly Opus One competitive tests since 2011.

InterScan Messaging Security

Increase productivity with superior email protection

  • Detect and block APTs and targeted attacks
  • Thwart targeted phishing attacks and advanced malware
  • Simplify data protection and encryption
  • Block more spam—proven #1 in independent tests

InterScan Messaging Security delivers leading gateway messaging security with on-site and cloud components. It prevents targeted attacks and blocks spam while the Data Privacy and Encryption Module solves tough compliance and data privacy challenges by securing outbound data.

Protection from targeted attacks and traditional threats

Targeted attack protections are built into to InterScan Messaging Security™ to block email threats including advanced persistent threats (APTs).  It uses enhanced web reputation, document exploit detection, optional sandbox execution analysis, and custom threat intelligence to provide comprehensive security from spear phishing attacks associated with APTs and other targeted threats.  With InterScan Messaging Security you can:

  • Detect known and unknown exploits in Adobe PDF, MS Office and other document formats
  • Perform malware execution analysis and generate custom threat intelligence and adaptive security updates with optional Trend Micro™ Deep Discovery Advisor integration
  • Stop threats from entering your environment with immediate protection based on global threat intelligence from Trend Micro™ Smart Protection Network cloud-based security
  • Identifies spear-phishing emails by correlating email components, such as the header, body, and network routing

Learn how InterScan Messaging Security prevents targeted attacks.

In-the-cloud email filtering with onsite quarantine

The included SaaS pre-filter option for virtual appliance and software appliance cuts total email volumes up to 95 percent by blocking threats and spam in the cloud. Your data remains private because your emails are never stored in the cloud.

  • Lowers impact at the email gateway by filtering email in the cloud
  • Reduces datacenter footprint and minimizes IT staff time
  • Allows quick deployment of new capacity when needed
  • Includes our Service Level Agreement that guarantees email traffic uptime

Data privacy and encryption (additional license required)

Identity-based encryption and customizable DLP templates for virtual appliance and software appliance deployments make outbound data protection quick to deploy and a breeze to manage.

  • Triggers automatic encryption, quarantine, or notification based on filtering policies
  • Speeds set up of DLP content filtering rules with over 200 customizable compliance templates
  • Eliminates the pre-enrollment and certificate management hassles of PKI encryption
  • Reduces the reliance on user-driven encryption with an automated policy-driven gateway solution

Single management console

Unifies management of all aspects of gateway messaging security, including cloud pre-filter, on-premise content scanning, DLP, and encryption.

  • Maximizes control and saves time with a fully integrated solution
  • Supports customizable policies and granular, rule-based filtering
  • Integrates quarantines, logs and reports for easy management, message tracking and visibility
  • Cuts management time and speeds up compliance audits with detailed reporting

The most comprehensive protection from spam to APTs

InterScan Messaging Security gives you both inbound and outbound security and protection against targeted attacks—for the most comprehensive mail gateway protection.

  • Blocks spear phishing and other targeted attacks before they reach their intended target using enhanced web reputation, document exploit detection, and optional sandbox analysis
  • Delivers Trend Micro’s unique social engineering attack protection to identify phishing emails
  • Tags graymail messages such as bulk marketing newsletters for optional sorting
  • Protects the privacy of outbound communications and discovers violations in the mail store with easy-to-use compliance templates and central management via integrated Data Loss Prevention and email encryption
  • Identifies new threats with global threat intelligence correlated with big data analytics

Award-winning messaging security

#1 antispam, consistently beating 8 competitors in quarterly independent tests by Opus One, and the "gold winner" in the best cloud-hosted messaging security product poll by, Trend Micro InterScan Messaging Security offers the best mail gateway solution.

#1 ANTISPAM Opus One comparative performance of anti-spam gateways 

Opus One antispam test results

In an independent comparison test (PDF) by Opus One, InterScan Messaging Security with layered antispam stopped more spam than 8 competing solutions.

GOLD WINNER Best messaging security products of 2011 polled readers to find the “Best messaging security products of 2011.” InterScan Messaging Security scored the highest marks, beating leading solutions from Cisco and Barracuda. It particularly shined in the category of end-user transparency and ease of use. Readers also like its ability to detect and block spam, phishing attempts, viruses and spyware. Ease of installation, configuration and administration also ranked high.

Read full article

Targeted attacks need a custom defence

Part of the Trend Micro™ Network Defense Solution, Trend Micro messaging security products provide protection against targeted attacks with enhanced social engineering attack protection, web reputation, new detection engines, new local security updates, and a threat analysis appliance to block highly targeted email attacks by using exploit detection and sandboxing. Integration of these components provides a custom defense that enables you to detect, analyze, adapt and respond to targeted attacks.

New Social Engineering Attack Protection

Enhanced web reputation

  • Web reputation is powered by the big data analytics and predictive technology of Smart Protection Network global threat intelligence
  • Enhanced technology scans URLs embedded in emails and blocks URLs leading to malicious sites

Advanced threat scan engine

  • Detects advanced malware in PDF, MS Office, and other documents using static and heuristic logic to detect and examine abnormalities in addition to known and zero-day exploits
  • Quarantines suspicious attachments for automatic sandbox execution analysis to occur in-line without impacting the delivery of majority of messages (requires integration with optional Trend Micro™ Deep Discovery Advisor)

Deep Discovery Advisor, a component of the Trend Micro™ Custom Defence Solution

  • Provides automatic in-depth simulation and analysis of potentially malicious attachments including executables and common office documents in a secure sandbox environment
  • Allows customers to create and analyze multiple fully custom target images that precisely match their host environments
  • Analyzes logs of Trend Micro products and third-party solutions combined with Trend Micro threat intelligence to provide in-depth insights for risk-based incident assessment, containment and remediation
  • Issues custom security updates on new malicious download sites and targeted attack Command and Control locations found during sandbox analysis
  • Enables adaptive protection and remediation by Trend Micro endpoint, data center, and web security products and other third-party security layers

Hybrid SaaS Email Security

A no-cost option for virtual appliance and software appliance deployments

InterScan Messaging Security delivers fully integrated, multi-layered security that starts filtering spam and malicious email in the cloud. At the next layer, it queries cloud-based reputation databases and performs a final sweep at the network perimeter.

View product demo

  1. The cloud pre-filter is a SaaS offering included in the licensing agreement; deployment is optional. As a first layer of defense, it stops spam, phishing and malware, including malicious links—before they can reach your network. It reduces total email volumes up to 95%, minimizing the impact on your mail gateway and the drain on IT resources. No email is stored in the cloud to ensure data privacy.

  2. Email and Web Reputation deliver immediate protection by sending real-time queries to the Trend Micro Smart Protection Network. Based on up-to-the-minute threat intelligence in the cloud, Email Reputation blocks mail from known spammers and cybercriminals, and Web Reputation blocks access to malicious websites.

  3. The #1 antispam engine consistently winning competitive tests stops spam and phishing threats using signature files—for a layered defense.

  4. Industry-leading anti-malware blocks the wide range of known threats based on signatures, heuristics and document exploits.

  5. The on-premise virtual appliance takes over once the heavy lifting is done. It scans inbound and outbound email based on flexible and customizable policies, including DLP filtering and encryption.

Choose security that fits

InterScan Messaging Security can be deployed as a virtual or software appliance, or as a software solution for Windows and Linux.


Virtual appliance

Virtualized deployments via Hypervisor technologies

  • Microsoft® Hyper-V Virtual Appliance
  • VMware Ready Virtual Appliance: Rigorously tested and validated by VMware, the only messaging gateway solution to achieve VMware Ready validation. Supports VMware ESX or ESXi v3.5 and vSphere.

    VMware Ready

  • Windows Server 2012 support in Q4 2012

Learn more

Software appliance

Bare metal installation with tuned, security-hardened OS

  • Certified by Trend Micro
    Through extensive testing and validation, Trend Micro certifies platforms for compatibility with Trend Micro software virtual appliance solutions.
    See certified server platforms (PDF)


Software deployment

Installs easily on standard hardware

  • InterScan Messaging Security Suite: Includes the same world-class antispam, anti-malware, and content filtering in a standard software solution. SaaS pre-filter and Data Privacy and Encryption module are not available in this implementation.
  • Windows Server 2012 support in Q1 2013

Virtual appliances

Server platform compatibility:

Minimum hardware requirements

  • Two Intel™ Xeon CPUs 3GHz
  • 4GB RAM
  • 120GB of disk space

Software deployment:

Microsoft™ Windows™, Linux™

  • 2G RAM of memory
  • 80 GB hard disk spac - 500MB of disk space for installation and additional disk space needed for mail storage and database
  • Microsoft Internet Explorer 6 SP1, 7, 8 or Firefox 3
  • LDAP Server Microsoft Active Directory 2000 or 2003, IBM Lotus Domino 6.0 or above, or Sun One LDAP

Microsoft Windows

  • Windows Server 2008 with SP 2.0 or above
  • Windows Server 2003 with SP 2.0 or above
  • Windows Server 2003 R2 with Sp 2.0 or above
  • Two Intel Xeon 3GHz or higher
  • Microsoft Desktop Engine or Microsoft SQL Server 2000 or above, SQL Express 2005 or above


  • Red Hat™ Enterprise Linux 3, 4, or 5
  • Intel Dual Pentium IV 3 GHz
  • 2GB swap space
  • PostgreSQL version 8.1.3 or above
  • MTA Postfix 2.1 or above; Sendmail; Qmail

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