Email Security Market – Global Industry Size, Share, Trends, Opportunity, and Forecast Segmented, By Deployment (Cloud, On-Premises, and Hybrid), By Type (Boundary Email Encryption, End-to-End Email Encryption, Gateway Email Encryption, Hybrid Email encryption, and Client Plugins), By Application (BFSI, Government, Healthcare, IT & Telecom, Media & Entertainment, and Others (Retail, Defense)) By Region, Competition 2021-2031F

Forecast Period	2027-2031
Market Size (2025)	USD 7.16 Billion
CAGR (2026-2031)	11.74%
Fastest Growing Segment	Cloud
Largest Market	North America
Market Size (2031)	USD 13.94 Billion

Market Overview

The Global Email Security Market will grow from USD 7.16 Billion in 2025 to USD 13.94 Billion by 2031 at a 11.74% CAGR. Email security encompasses the collective measures, protocols, and software designed to protect email accounts and communications from unauthorized access, loss, or compromise. The market is primarily driven by the escalating frequency of cyber threats, particularly business email compromise and phishing, which necessitate robust defense mechanisms to safeguard sensitive corporate data. Furthermore, stringent regulatory compliance mandates regarding data privacy compel organizations to invest in advanced protection suites. According to the Anti-Phishing Working Group, in 2024, the volume of observed phishing attacks reached 989,123 in the fourth quarter alone, underscoring the critical demand for fortified email defense systems.

Despite the urgent need for these solutions, the market faces a significant challenge regarding the high cost and complexity of integrating comprehensive security layers into existing infrastructures. Small and medium-sized enterprises often struggle with the financial investment associated with premium security platforms and the technical expertise required to manage them effectively. This operational barrier can lead to gaps in adoption, leaving smaller entities vulnerable to attacks and impeding the broader expansion of the market across all business sizes.

Key Market Drivers

The escalating frequency and sophistication of email-borne cyber threats constitute the primary catalyst for market growth, compelling organizations to fortify their defense perimeters. Adversaries are increasingly bypassing legacy filters by leveraging advanced tactics, such as multi-stage payload attacks and quishing, which necessitate the deployment of responsive, integrated security layers. This surge in threat volume forces enterprises to transition from basic compliance-focused tools to dynamic platforms capable of detecting zero-day anomalies and neutralizing credential theft attempts in real time. According to SlashNext, December 2024, in the '2024 Phishing Intelligence Report', credential phishing attacks surged by 703% during the second half of the year, driven largely by the widespread availability of automated phishing kits on the dark web.

The integration of AI and Machine Learning in advanced threat detection is rapidly reshaping the sector, serving as a critical response to the weaponization of generative AI by cybercriminals. Security vendors are embedding large language models into their solutions to analyze communication patterns and identify subtle indicators of compromise that rule-based systems often miss, such as linguistic anomalies in business email compromise attempts. This technological advancement is essential for differentiating between legitimate correspondence and AI-enhanced social engineering campaigns. According to Darktrace, February 2025, in the 'Annual Threat Report 2024', 32% of detected phishing attacks utilized novel social engineering techniques, including AI-generated text with high linguistic complexity. The financial stakes driving this adoption are immense; according to the Federal Bureau of Investigation (FBI), in April 2025, reported losses from cybercrime exceeded $16 billion in the previous year.

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Key Market Challenges

The substantial capital investment and technical complexity required to implement comprehensive email defense systems stand as a primary impediment to the broader expansion of the Global Email Security Market. While large enterprises may possess the necessary resources, Small and Medium-sized Enterprises frequently encounter prohibitive barriers to entry due to the high costs of premium security suites. This financial strain is compounded by a shortage of specialized IT personnel capable of managing intricate security configurations, forcing smaller entities to forego advanced protections. Consequently, this inability to secure affordable, manageable solutions limits market penetration in the SME sector, effectively capping the total addressable market and slowing overall revenue growth.

This financial friction is substantiated by recent data highlighting the disparity between security requirements and available resources. According to ISACA, in 2024, 51% of organizations reported that their cybersecurity budgets were underfunded. This statistic demonstrates that a majority of potential buyers are operationally restricted from acquiring necessary defense mechanisms. When organizations are unable to allocate sufficient funds, the adoption rate of essential email security platforms inevitably declines, directly hampering the commercial progress of the market.

Key Market Trends

The Shift from Secure Email Gateways (SEG) to API-Based Deployment Models represents a fundamental architectural evolution in the Global Email Security Market, driven by the inability of perimeter-based defenses to inspect internal traffic or effectively counter business email compromise (BEC). Unlike legacy gateways that require changing MX records, API-based Integrated Cloud Email Security (ICES) solutions connect directly into cloud productivity suites, allowing for the analysis of historical communication patterns and the detection of lateral movement. This transition is accelerating as organizations prioritize behavioral analysis over static signature detection to identify sophisticated threats that evade traditional filters. The urgency for this architectural upgrade is evidenced by the rising volume of complex attacks; according to Abnormal Security, January 2025, in the 'New Research from Abnormal Security Reveals a Surge in Email Attacks' report, the median monthly rate of advanced email attacks in the APAC region surged by 26.9% year-over-year, highlighting the critical need for internal, API-driven visibility.

Concurrently, the Rise of Automated Post-Delivery Incident Response and Remediation is becoming a standard operational requirement to address the latency gap between threat delivery and detection. As phishing campaigns operate at machine speed, manual analysis by security operations centers (SOCs) is increasingly insufficient, prompting the adoption of Mail Security Orchestration, Automation, and Response (M-SOAR) capabilities. These systems automatically retract malicious messages from user inboxes after delivery (m-remap) and correlate threat intelligence across endpoints, significantly reducing the dwell time of successful breaches. The efficacy and adoption of these automated mechanisms are growing rapidly; according to Cloudflare, March 2025, in the article 'How Cloudflare is using automation to tackle phishing head on', their automated systems were able to resolve 78% of phishing reports in the second half of 2024 without human intervention, demonstrating the market's pivot toward autonomous defense operations.

Segmental Insights

The Cloud segment is recognized as the fastest-growing area within the Global Email Security Market, largely due to the extensive migration of corporate communication to cloud-based environments. Enterprises are prioritizing this deployment model to eliminate the high capital costs and maintenance burdens associated with physical on-premise appliances. Additionally, the inherent scalability of cloud security allows organizations to rapidly adapt to expanding user bases and decentralized work models. This alignment with modern operational requirements and the seamless integration with major email platforms drives the accelerated adoption of cloud-based security solutions.

Regional Insights

North America holds the largest share of the global email security market, driven by the widespread implementation of cloud-based solutions and the high concentration of major technology providers within the region. Organizations here face frequent phishing attempts and data breaches, prompting significant investment in defensive infrastructure. Additionally, compliance with stringent data privacy regulations, such as those overseen by the Federal Trade Commission or mandated by HIPAA, compels businesses to prioritize secure communication channels. This regulatory pressure combined with established digital infrastructure solidifies the region's market leadership.

Recent Developments

• In June 2025, Kiteworks, a company specializing in data governance and private content networks, announced the acquisition of Zivver, a European provider of secure email solutions. This strategic expansion aimed to integrate robust secure email capabilities into the acquirer's broader data protection platform, enhancing its ability to safeguard sensitive communications. The collaboration focused on preventing data leaks and ensuring compliance with stringent international data privacy regulations. By absorbing these specialized email security tools, the company significantly strengthened its position in the Global Email Security Market, offering enterprise customers a more comprehensive defense against unauthorized data access and interception.
• In May 2024, Proofpoint unveiled "Adaptive Email Security," a new solution powered by behavioral artificial intelligence, alongside industry-first pre-delivery defense capabilities. This product launch was engineered to stop complex threats, such as business email compromise and lateral phishing, before they could reach employee inboxes. The new offering provided an integrated layer of cloud email security that seamlessly complemented existing infrastructures like Microsoft 365, utilizing AI to detect anomalies in communication patterns. This innovation demonstrated the company's commitment to advancing threat detection standards within the Global Email Security Market by effectively countering socially engineered attacks.
• In April 2024, KnowBe4 announced a definitive agreement to acquire Egress, a cloud email security platform recognized for its adaptive protection technologies. This acquisition was designed to merge the acquirer's security awareness training with AI-driven email security, creating a unified solution tailored to individual risk profiles. The collaboration intended to deliver a dynamic defense system where security policies could automatically adjust based on real-time threat intelligence and user behavior. This move signified a major consolidation in the Global Email Security Market, reinforcing the trend toward integrated platforms that simultaneously address technological vulnerabilities and workforce security culture.
• In January 2024, Mimecast, a prominent figure in the Global Email Security Market, completed the acquisition of Elevate Security to strengthen its human risk management capabilities. This strategic collaboration allowed the company to integrate advanced risk intelligence into its existing platform, thereby providing organizations with deeper visibility into high-risk employee behaviors. By combining email defenses with human-centric security insights, the firm aimed to proactively identify and mitigate vulnerabilities caused by human error. This development highlighted the increasing industry focus on addressing the human element as a critical layer of defense against sophisticated email-borne cyber threats.

Key Market Players

• Saint-Gobain S.A.
• Asahi Glass Co. Ltd.
• VKR Holdings A/S
• PGT Innovations, Inc.
• Cornerstone Building Brands
• Andersen Corporation
• Rehau Limited
• YKK Corporation
• Jeld-Wen Holding, Inc.
• Deceuninck Group

By Deployment	By Type	By Application	By Region
Cloud On-Premises Hybrid	Boundary Email Encryption End-to-End Email Encryption Gateway Email Encryption Hybrid Email encryption Client Plugins	BFSI Government Healthcare IT & Telecom Media & Entertainment Others (Retail, Defense)	North America Europe Asia Pacific South America Middle East & Africa

Report Scope:

In this report, the Global Email Security Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

• Email Security Market, By Deployment:

• Cloud
• On-Premises
• Hybrid

• Email Security Market, By Type:

• Boundary Email Encryption
• End-to-End Email Encryption
• Gateway Email Encryption
• Hybrid Email encryption
• Client Plugins

• Email Security Market, By Application:

• BFSI
• Government
• Healthcare
• IT & Telecom
• Media & Entertainment
• Others (Retail, Defense)

• Email Security Market, By Region:

• North America
• United States
• Canada
• Mexico
• Europe
• France
• United Kingdom
• Italy
• Germany
• Spain
• Asia Pacific
• China
• India
• Japan
• Australia
• South Korea
• South America
• Brazil
• Argentina
• Colombia
• Middle East & Africa
• South Africa
• Saudi Arabia
• UAE