--- title: Messaging Gateway url: https://www.broadcom.com/products/cybersecurity/email/gateway description: Protect on-premises and private cloud email from phishing, ransomware, and BEC with Symantec Messaging Gateway's layered defense and DLP. --- # Messaging Gateway ## Protect your email with flexible, appliance-based security Defend against spam, malware, phishing, ransomware, impersonation, and data loss with multilayered security. [Watch the video](https://www.broadcom.com/) ### Solution Overview Email is still one of the fastest paths into the enterprise, and attackers increasingly use phishing, ransomware, and impersonation to target both everyday users and executives. Many organizations need this same level of defense-in-depth, but must keep their email infrastructure on-premises or in a private cloud due to regulatory, data residency, architectural, or operational requirements. Symantec™ Messaging Gateway delivers appliance-based protection for enterprises that manage their own email infrastructure, providing the same layered defense model as Email Security.cloud in a deployment that organizations fully control. It defends inbound and outbound mail against ransomware, spear phishing, business email compromise, and spam, catching more than 99 percent of unwanted email through multilayer detection technologies and real-time antispam and antimalware intelligence. Built-in data loss prevention and policy-based encryption help keep sensitive communications protected and confidential, while detailed auditing and SIEM integration give security teams the visibility needed to track threats and enforce compliance. Deployable as a physical or virtual appliance, Messaging Gateway can also be extended with Symantec Content Analysis, Symantec DLP, and Symantec Content Encryption, so enterprises can align on-premises or private cloud email security with broader detection, response, and data protection strategies without moving their mail infrastructure to the public cloud. - [Symantec Messaging Gateway](https://docs.broadcom.com/docs/messaging-gateway-product-brief) ### Why It Matters Email remains the easiest way for attackers to reach your users, and today's campaigns blend phishing, ransomware, business email compromise, and impersonation in ways that are hard for people—and basic filters—to spot consistently. Many enterprises need this same layered defense, but regulatory requirements, data residency obligations, or existing infrastructure investments mean their email systems must stay on-premises or in a private cloud rather than move to a public cloud platform. Relying on basic mail server controls or legacy gateway protections alone leaves the same gaps in defense, visibility, and governance that affect any under-protected email environment. Sophisticated attacks can bypass static filtering, weaponize links or attachments after delivery, or hide inside legitimate-looking messages that evade simple reputation checks—regardless of where email is hosted. Security leaders and SOC teams need layered controls that inspect content more deeply, catch spam and malware before they reach the network, enforce data protection policies, and provide the auditing and SIEM integration needed to align on-premises or private cloud email security with broader risk and compliance objectives. ## Solution Capabilities Why organizations choose Symantec Messaging Gateway: ### Spear phishing and ransomware defense Stop spear phishing with global URL reputation filtering and block targeted ransomware by removing zero-day threats from attachments before delivery. ### Phishing, impersonation, and BEC protection Stop business email compromise, spoofing, and impersonation using a dedicated BEC analysis engine, sender authentication protocols, and domain intelligence. ### Directory harvesting and outbound spam control Use global and local reputation intelligence to block spam, while sender throttling prevents compromised accounts from launching attacks or damaging your sender reputation. ### Malware and spam defense Block malicious links, attachments, and bulk mail before delivery, catching over 99 percent of spam via global reputation databases, heuristics, and custom rules. ### Internal data loss prevention Enforce compliance and encryption policies on sensitive email using pre-built dictionaries, templates, and automatic SMTP over TLS encryption for data in transit. ### Detailed auditing and visibility Trace threats and compliance issues through a web-based console with customizable dashboards, 50 preset reports, and SIEM integration for deeper investigation. ## Use Cases Explore how Symantec Messaging Gateway common enterprise email security challenges: ### Secure email running on-premises or in a private cloud Secure inbound and outbound mail with appliance-based defenses, ideal for enterprises in regulated industries requiring on-premises or private cloud deployment to meet strict compliance mandates. ### Defend senior leaders against BEC and impersonation Reduce BEC risks using dedicated scam analysis, sender authentication, and domain intelligence to block spoofing and impersonation, protecting sensitive roles from significant financial damage. ### Stop ransomware and spear phishing before delivery Block ransomware and spear phishing by removing zero-day threats from attachments and filtering malicious links using global URL reputation intelligence, stopping advanced attacks at the gateway before reaching users. ### Strengthen governance for sensitive outbound email Enforce compliance and encryption on outbound email using built-in DLP policies and templates, with options to extend to advanced encryption as business requirements evolve. ### Support large-scale, mixed messaging environments Manage complex infrastructure with flexible, scalable deployment across multiple appliances, supporting mixed environments without disrupting existing mail operations. ### Extend threat and data protection with integrations Enhance security by integrating with Symantec Content Analysis for sandboxing or Symantec DLP for broader policy enforcement, building a coordinated data protection strategy. ## Advanced Data Protection For organizations with more advanced requirements, Symantec Messaging Gateway can be extended with add-on modules that expand data protection, encryption capabilities, and content analysis without disrupting the underlying email environment: ### Advanced DLP for complex policies Extended dictionaries, workflow, and integration across email, endpoint, network, and cloud for stricter governance. - [Symantec DLP for Email](https://docs.broadcom.com/docs/data-loss-prevention-cloud-service-email-en) ### Advanced email encryption services PGP‑based encryption for organizations with specialized privacy, compliance, or communication requirements. - [Symantec PGP Gateway Email Encryption](https://docs.broadcom.com/docs/encryption-solutions-for-email-en) ### Advanced content threat inspection services Uncover evasive threats using multi-layer inspection, machine learning, and advanced attachment sandboxing. - [Symantec Content Analysis](https://docs.broadcom.com/docs/content-analysis-product-brief) ## Business Outcomes What organizations achieve with Symantec Messaging Gateway: ![A_CB-IMS-Resilience.jpg](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/bltb9dc8c170036922f/69388fa53a0ed883f8a7b24b/A_CB-IMS-Resilience.jpg) ### Reduce risk from email‑borne attacks Strengthen protection against ransomware, impersonation, phishing, and other email threats. ![A_CB-IMS-Email_Security_2.jpg](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt52684528550fcbcb/6939d8c18943a3b6ae70cce2/A_CB-IMS-Email_Security_2.jpg) ### Maintain control over email infrastructure Keep email security within your own data center or private cloud, supporting compliance and architectural mandates. ![CB-IMS-Compliance_2.jpg](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt44a81dfa5b8aff87/6a30098ac284ba7b69ef3dec/CB-IMS-Compliance_2.jpg) ### Address regulatory compliance Apply consistent data protection and encryption policies across sensitive email communications. ![A_CB-IMS-Collaboration_3.jpg](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt3f05811bf5d95583/693acaade59b0a10eaa74677/A_CB-IMS-Collaboration_3.jpg) ### Improve visibility and efficiency Simplify investigation and reporting with a centralized console, detailed auditing, and preset reports. ## Why Symantec Symantec brings long-standing experience protecting large, complex environments where email remains a primary attack path, including enterprises that must keep their mail infrastructure on-premises or in a private cloud. Messaging Gateway goes beyond basic filtering with layered protection for malware, spam, phishing, impersonation, and business email compromise, plus built-in data loss prevention, helping organizations reduce risk while maintaining full control over their email security architecture. When requirements grow, Symantec extends Messaging Gateway with advanced data protection through Symantec DLP, Content Encryption, and Content Analysis, integrating deeper policy enforcement, encryption, and sandboxing into the appliance-based deployment organizations already rely on. Backed by the Symantec Integrated Cyber Defense Platform, global support, and mature enterprise operations, Symantec helps security teams treat on-premises and private cloud email as an integrated part of the security architecture rather than an isolated point solution. ## Services & Support ### Accelerate your success with help that’s timely and targeted. ![Professional Services](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt9c07758c26601905/60d1d55d3f413c1713cfe50e/professional_services_100x100.png) ### Services Find a partner to help implement, upgrade or expand your Broadcom software solution. - [Partner Services](https://expert.broadcom.com/) ![Community](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blta25aa8e36ce17207/6051bd0f0a20382deb90a6c6/community.png) ### Community Find answers to questions, share knowledge with your peers, and learn about upcoming events. - [SMG Community](https://community.broadcom.com/symantecenterprise/communities/communityhomeblogs?CommunityKey=bba1e9dc-0c56-4fb5-9e3d-ef7f0d79b7ee) ![Support](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt6459372d0d65b75a/60df6d9161faef2008de23b0/headset.png) ### Support Troubleshoot technical issues, browse latest product documentation, and access support announcements. - [Technical Support](https://support.broadcom.com/security) - [Documentation](https://techdocs.broadcom.com/us/en/symantec-security-software/email-security/messaging-gateway/10-8-0.html) ![Education & Training](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/bltbc585e58ca29cd6e/6051c98891c90f4740ec8b5c/online-training.png) ### Education Sharpen your skills with training, certifications and resources that can transform your company and career. - [Software Education](https://www.broadcom.com/support/education/software) ## Resources ### Assets - [Treat Every Inbox as an AI-Targeted Attack Surface](https://docs.broadcom.com/docs/treat-every-inbox-as-an-ai-targeted-attack-surface) - [Radicati 2025 Secure Email Market Quadrant](https://docs.broadcom.com/docs/radicati-secure-email-market-quadrant-2025) - [Laptops in the Wild eBook](https://docs.broadcom.com/docs/laptops-in-the-wild-ebook) - [Code Red Alert eBook](https://docs.broadcom.com/docs/Code-Red-Alert-eBook) ### Product Updates Interact with product management and technical experts to learn about new features and product roadmaps. - [Registration and Replay Recording Links for Office Hours](https://engage.broadcom.com/Essentials-Office-Hours) ### Keep Informed Learn about product features, benefits, and best practices through our newsletters and customer events. - [Check out the IMS Events Calendar](https://engage.broadcom.com/IMS-events) - [Subscribe to IMS Newsletter(s)](https://symantec.broadcom.com/ims-customer-newsletter-center#form-anchor2) ## More - [Buy via Partner](https://www.broadcom.com/how-to-buy/partner-distributor-lookup) - [Contact Us](https://engage.broadcom.com/ims-contact) ## Also of Interest - [Symantec Email Security.cloud Enterprise Email...](https://www.broadcom.com/products/cybersecurity/email/security-cloud) - [Symantec Email Security Cloud and On-Premises](https://www.broadcom.com/products/cybersecurity/email) - [Advanced Email Threat Detection, Response and...](https://www.broadcom.com/products/cybersecurity/email/threat-detection-and-response)