Email Security

Protect Against the Latest Email-Borne Threats

Email is the primary means of official communication — and the gateway for ransomware, advanced malware, spam, phishing, and data leak. GajShield Email Security combines the Contextual Intelligence Engine with multi-layered protection to keep enterprise communication secure.

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GajShield Email Security
25 Billion+
Transactions Processed Daily
6 Million+
Spam Signatures Maintained
30,000+
New Signatures Added Hourly
Our Approach

Four Engines Working In Concert

Email threats move fast and malicious files often look like normal communication. GajShield's approach combines threat intelligence, contextual analysis, pattern detection, and intelligent sandboxing — each catching threats the others miss.

01

GajShield Threat Lab

Proactive virus detection and Zero-Hour Outbreak Protection — shielding enterprises in the earliest moments of malware outbreaks and as new variants emerge. Proactive virus blocking is signature-independent and effective from the moment a threat is identified.

The Threat Lab maintains a database of real-time spam outbreaks compiled through consultation with global Internet Service Providers. Patterns are analysed, categorised, and cross-matched using algorithms optimised for detecting repeating patterns and their sources.

02

Contextual Intelligence Engine

Goes beyond traditional context to create deep context for the mail application. Analyses usage and creates context by deep-diving into granular details: sender address, recipient, subject, mail content, attachments, signature — for better, more informed security with advanced visibility.

Explore the Contextual Intelligence Engine →
03

Recurrent Pattern Detection

At the heart of GajShield's Mail Security is a powerful spam engine that identifies spam patterns regardless of content, format, or language. By immediately detecting new attack patterns and maintaining a database of spam outbreaks, the RPD engine identifies the quantity and speed of spam distribution — catching outbreaks before signatures are available.

04

Network Sandbox

An intelligent sandbox with anti-evasion capability — protection against malware that understands and detects virtual environments. Sandboxes various file types and embedded URLs, inspecting content that traditional signature-based antivirus cannot identify as malicious, and categorising it accordingly.

Key Highlights

Everything You Need to Block Modern Email Threats

Real-time global intelligence, advanced behavioural analysis, content scanning, and identity-based protection — integrated into a single platform.

Block Before Infrastructure

Stop ransomware, spam, phishing, and malware attacks before they reach your infrastructure.

Machine Learning

Advanced malware protection using ML techniques to model trusted email behaviour and identify anomalies.

URL Scanning

URL-related protection scanning links in emails based on category and reputation — even after delivery.

DMARC, DKIM & SPF

Domain Message Authentication Reporting and Conformance combined with DKIM and SPF for forged-email detection — protecting against BEC attacks.

Integrated DLP

Protect sensitive data with built-in Data Leak Prevention — the same DLP engine used across the firewall stack.

Archiving Integration

Seamless integration with GajShield Archiving Solution for compliance and long-term retention.

Web-Based Administration

Simple to manage and configure using web-based administration — no specialised tooling required.

Comprehensive Reporting

In-depth reporting offers a single view for comprehensive insight across your organisation — threat trends, blocked attempts, top targets, and remediation status. Combine with GajShield CMS for fleet-wide visibility across multiple deployments.

Complete Feature Reference

Five Layers of Email Protection

Each capability area in detail — for evaluators, partners, and security teams who need the full feature picture.

LAYER 01

Multi-Layered Protection

  • Scrutinises IP and domain of mails
  • Reputation check and validation
  • Bounce history, address authentication
  • DMARC and DKIM checks
  • Analyse message and content structure
  • Image, digital signature, and contextual keyword analysis
  • Scan embedded URIs
  • Categorisation by threat type
LAYER 02

Data Leak Prevention

  • Deep packet analysis of email content and attachments
  • Restrict content sharing across email channels
  • Easy policy implementation with templates
  • Unique group mailing policies for org structures
  • Protect critical data with context-sensitive rules
Explore the dedicated DLP solution →
LAYER 03

Gateway Anti-Malware

  • Powerful real-time protection from virus outbreaks
  • Scans HTTP, HTTPS, FTP, POP3, SMTP, SMTPS
  • Detects and removes viruses, worms, all malware types
  • Instant identification of virus-infected users
  • Zero-Hour virus protection
  • Spyware, malware, phishing protection
  • Automatic real-time virus updates
  • Complete protection across all protocols
  • Last-virus-update definition tracking
  • Comprehensive reporting
LAYER 04

Advanced Threat Protection

  • Advanced email protection — including BEC and impersonation
  • Anti-virus and anti-spam — integrated, not bolted on
  • Advanced intelligent sandboxing for unknown files
  • Complete mail analysis — headers, body, attachments, embedded URLs
  • Deep mail inspection at every protocol layer
Explore the dedicated ATP solution →
LAYER 05

Gateway Anti-Spam

  • Scans SMTP and POP3 traffic for spam
  • Detects, tags, or quarantines spam mail
  • Content-agnostic spam protection including image-spam
  • Pre-emptively stops sophisticated threats: phishing, pharming, zombie attacks
  • RBL list support
  • Enforces black and white lists
  • Real-time protection from emerging threats
  • Language, content, format, signature-independent prevention
  • Detects phishing URLs in emails
  • Quarantine spam mails for review
  • Mail archiving for compliance
Take It With You

Download the Email Security Brochure

Full feature reference, deployment scenarios, and integration architecture for your team and procurement reviews.

Download Brochure (PDF) ↓
Get Started

Block Email Threats Before They Land

Talk to a GajShield expert. We will demonstrate the email security stack on live traffic from your own mailflow — you see exactly what's getting through your current defences today.

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