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Secure Email Gateway (SEG) Software

Secure Email Gateway

What is Secure Email Gateway Software?

Secure Email Gateways (SEG) prevent the sending and receiving of emails that are either harmful, or contravene company policies. SEG can quarantine or block emails that contain detected threats (viruses, malware, phishing attempts).

Common Features

  • Anti Spam and Bulk Email Detection
  • Anti Phishing and Spear Phishing
  • URL and Malware Detection
  • End User Spam Visibility and Controls
  • Data Loss Prevention
  • Anti Malware Signature Detection
  • Anti Malware Behavioral Detection
  • Encryption and Decryption
  • Hosted Email Support
  • Email Retention and Archiving
  • Reporting Components

Top Secure Email Gateway (SEG) Software

2026 Data Quadrant Awards

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At SoftwareReviews, we take pride in recognizing excellence. Each year, we present the Data Quadrant Awards to top-performing software products based solely on authentic user reviews, without any paid placements or analyst opinions. These awards highlight software products that excel in terms of features, vendor capabilities, and customer relationships, earning them the highest overall rankings.

At SoftwareReviews, we take pride in recognizing excellence. Each year, we present the Emotional Footprint Awards to top-performing software products based solely on authentic user reviews, without any paid placements or analyst opinions. These awards shine a spotlight on software vendors who excel in crafting and nurturing strong customer relationships.

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Products: 11
Next Award: Apr 2027

Top Secure Email Gateway Software 2026

Product scores listed below represent current data. This may be different from data contained in reports and awards, which express data as of their publication date.

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GreatHorn Cloud Email Security Platform changes the way you manage risk, layering sophisticated detection of polymorphic phishing threats with user engagement and integrated incident response, allowing your organization to address advanced threats at the moment risk enters your environment.

The Email Laundry

The Email Laundry

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The Email Laundry’s technological edge in threat intelligence, advanced predictive analytics, and impersonation detection allows our customers to rest assured that our service will identify malicious sources before they can attack – keeping your customer’s email safe.

N-Able Technologies, Inc.

N-able Mail Assure

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N‑able™ Mail Assure helps safeguard against phishing, spam, viruses, ransomware, social engineering, and other email-borne threats. It blocks 98.69% of all malware.

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Vircom’s modusCloud is a cloud email security product providing real-time threat protection spam and phishing detection, advanced multi-layer anti-virus and email archiving. Users receive comprehensive protection against unwanted and malicious email. while administrators can easily tailor service to users’ needs and policies.

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SMART Email Encryption Dynamically adapting encrypted email ensures elegantly easy; simple for recipient means happy sender. Far beyond opportunistic TLS, RMail encrypted email service smartly adapts to provide peace-of-mind with end-to-end encryption, secure file sharing, auditable proof of fact of GDPR and HIPAA privacy compliance, and more.

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