
Symantec Messaging Gateway is an on-premises email security solution that provides inbound protection against the latest messaging threats. It offers an effective defence against a wide range of threats such as ransomware and business email compromise. With high-grade spam filtering capabilities it clears your inbox of unwanted email, so you are freed from unnecessary messages. Using real-time intelligence, it responds instantly to new messaging threats, which makes for more effective protection against zero-day attacks.

With these core capabilities, SMG protects email communications against spam, malware and targeted attacks. It also prevents accidental or malicious data leaks. In addition, SMG can be deployed as a virtual or physical appliance, and you can easily add capacity to keep messages flowing as spam volumes grow.
By bringing together multi-layered detection technologies backed by intelligence from the world's largest civilian threat intelligence network, SMG effectively identifies, blocks and quarantines suspicious email, strengthening your security.
SMG's advanced content filtering controls prevent unwanted email such as newsletters and other marketing content from reaching users. The solution also draws on a combination of Symantec's global and local sender reputation databases, heuristics and customer-specific spam rules to restrict up to 99% of spam before it reaches your network.
Granular control and deep visibility make messaging security manageable
With granular policy configuration and control, SMG offers a consolidated view in a single web-based console, letting you manage detailed reporting, threat trends, attack statistics and incidents easily.
Control tools
SMG provides a comprehensive reporting solution — dashboard, summary and detailed reports, including more than 50 preset reports that can be customized by content and scheduling frequency — to highlight threat trends and potential compliance issues.
SIEM (Security Information and Event Management) integration
The Syslog data generated can be exported to third-party security and information tools (SIEM) for further correlation analysis.
User-friendly
The graphical message audit interface provides simple message tracking and the ability to determine message trends and delivery status quickly.

DLP protects sensitive data
SMG offers built-in data loss prevention policies that make it easier to protect company data. Administrators can manage the process effectively and flexibly by creating automated data protection and enforcement policies using more than 100 pre-built dictionaries, patterns and policy templates. Messaging Gateway also provides automatic SMTP (Simple Mail Transfer Protocol) over TLS (Transport Layer Security) encryption, so that all email communications are transmitted securely. That preserves the confidentiality and security of internal company data.
Strong security integrations
For additional advanced threat protection, SMG can upload messaging file-based content to Symantec Content Analysis for inspection. That inspection provides actionable intelligence combining static analysis, machine learning and behavioural analysis techniques. In addition, an adaptive, customizable sandbox provides comprehensive malware detonation to analyse suspicious files quickly, interact with malware to reveal its full behaviour, and detect zero-day threats and unknown malware.
SMG also provides policy enforcement that integrates tightly with Symantec DLP to extend it to the email channel. Finally, policy-based encryption is available as the Symantec Content Encryption add-on. In this way SMG offers a comprehensive email security and data protection solution, keeping organizations safe against threats and the risk of data loss.
Given today's email threats, analysing attachments in real time and instantly checking whether the URLs in a message carry a threat has become critically important. Where required, MTA products such as Symantec Messaging Gateway can be supported here by Symantec's E-Mail Threat Isolation and Content Analysis solutions.
The Content Analysis (CA) appliance is used for advanced file protection, and the E-mail Threat Isolation appliance for link protection.

Conclusion
SMG offers a comprehensive set of threat detection capabilities that secure both inbound and outbound email messages. These capabilities prevent insidious email threats such as business email compromise, ransomware and spam, and keep your users from sending sensitive data by mistake. The solution also integrates with other leading Symantec security solutions to provide additional protection against messaging threats.