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48 Best ESET Mail Security Alternatives & Competitors (2026) | CybersecTools

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ESET Mail Security

Best ESET Mail Security Alternatives & Competitors in 2026

Top picks: ESET Cloud Office Security, Bitdefender GravityZone Extended Email Security, Mesh 365 — plus 45 more compared.

Email & Messaging Security

Evaluating ESET Mail Security alternatives comes down to matching Email & Messaging Security capabilities to your environment, integrations, and budget rather than chasing feature parity. The options below are compared on what actually drives a switch: coverage, deployment fit, pricing, and real reviews from security teams. Independent and vendor-neutral: we never sell rankings.

ESET Mail Security Alternatives and Competitors

ESET Mail Security is a commercial Email Security Platforms tool developed by ESET. Security professionals most commonly compare it with ESET Cloud Office Security, Bitdefender GravityZone Extended Email Security, Mesh 365, ConnectWise Email Security, and Cellopoint Cloud Email Security Solution. All 48 alternatives are matched by shared capabilities, tags, and NIST CSF 2.0 coverage.

Data verified Jul 2026

View ESET Mail Security All Email & Messaging Security Compare Stacks Market Map Explore All Tools

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Top ESET Mail Security Alternatives and Competitors at a Glance

A closer look at the 8 most relevant alternatives and competitors to ESET Mail Security, including their key features and shared capabilities.

ESET Cloud Office Security

Commercial

Email Security Platforms

Cloud email security for Microsoft 365 and Google Workspace applications

Key features: Spam filtering, Anti-malware scanning, Anti-phishing protection, Antispoofing protection, Homoglyph protection

View ESET Cloud Office Security|ESET Cloud Office Security alternatives|Compare ESET Cloud Office Security

Bitdefender GravityZone Extended Email Security

Commercial

Email Security Platforms

Cloud-native email security platform with SEG and API-based protection

Key features: Pre-delivery and post-delivery email protection, Secure Email Gateway (SEG) and API-based deployment options, Business Email Compromise (BEC) and impersonation detection, Multi-layered threat detection for known and unknown threats, SPF and DMARC email authentication support

View Bitdefender GravityZone Extended Email Security|Bitdefender GravityZone Extended Email Security alternatives|Compare Bitdefender GravityZone Extended Email Security

Commercial

Email Security Platforms

API-based email security platform for Microsoft 365 environments

Key features: API-based integration with Microsoft 365, Business email compromise protection, Impersonation detection, Email sandboxing, URL protection

View Mesh 365|Mesh 365 alternatives|Compare Mesh 365

ConnectWise Email Security

Commercial

Email Security Platforms

Email security platform with AI threat detection, BEC protection, and DLP

Key features: AI-powered threat detection and analysis, Business email compromise (BEC) protection with identity analysis, Data loss prevention with content inspection and policy controls, Phishing and ransomware blocking, Click-time URL sandboxing

View ConnectWise Email Security|ConnectWise Email Security alternatives|Compare ConnectWise Email Security

Cellopoint Cloud Email Security Solution

Commercial

Email Security Platforms

Cloud-based email security platform protecting against phishing, ransomware, BEC

Key features: AI and machine learning-based threat detection, Phishing protection, Ransomware protection, Business email compromise (BEC) protection, Advanced persistent threat (APT) detection

View Cellopoint Cloud Email Security Solution|Cellopoint Cloud Email Security Solution alternatives|Compare Cellopoint Cloud Email Security Solution

KnowBe4 Cloud Email Security

Commercial

Email Security Platforms

AI-driven email security platform for Microsoft 365 inbound/outbound threats

Key features: AI-driven detection of phishing, ransomware, and business email compromise, Behavioral AI and self-learning threat models, Real-time outbound email monitoring and data loss prevention, User alerts for accidental sends and misdirected emails, Policy-based email encryption

View KnowBe4 Cloud Email Security|KnowBe4 Cloud Email Security alternatives|Compare KnowBe4 Cloud Email Security

Microsoft Defender for Office 365

Commercial

Email Security Platforms

Email and collaboration security for Microsoft 365 environments

Key features: AI-powered sentiment analysis for email filtering, Inline protection against malicious links and attachments in Outlook and Teams, Real-time detonation of attachments and links, Automated BEC attack disruption with user disabling and device isolation, Post-delivery removal of malicious emails

View Microsoft Defender for Office 365|Microsoft Defender for Office 365 alternatives|Compare Microsoft Defender for Office 365

TrustLayer Mail

Commercial

Email Security Platforms

Email security platform with inline threat protection and compliant archiving

Key features: Inline email threat scanning for inbound, outbound, and internal mail, Real-time URL rewriting and click-time scanning (LinkScan), Phishing, malware, spoofing, and BEC attack blocking, User-level quarantine management, Flexible deployment via MX routing or M365 transport rules/connectors

View TrustLayer Mail|TrustLayer Mail alternatives|Compare TrustLayer Mail

All 48 Alternatives & Competitors to ESET Mail Security

Compare

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

Email Security Platforms

Compare

Bitdefender GravityZone Extended Email Security

Cloud-native email security platform with SEG and API-based protection

Email Security Platforms

Compare

API-based email security platform for Microsoft 365 environments

Email Security Platforms

Compare

ConnectWise Email Security

Email security platform with AI threat detection, BEC protection, and DLP

Email Security Platforms

Compare

Cellopoint Cloud Email Security Solution

Cloud-based email security platform protecting against phishing, ransomware, BEC

Email Security Platforms

Compare

KnowBe4 Cloud Email Security

AI-driven email security platform for Microsoft 365 inbound/outbound threats

Email Security Platforms

Compare

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

Email Security Platforms

Compare

TrustLayer Mail

Email security platform with inline threat protection and compliant archiving

Email Security Platforms

Compare

SorbSecurity Cloud Email Security

Cloud-based email security platform protecting against phishing & ransomware

Email Security Platforms

Compare

MX Layer Email Security

Cloud-based email security platform with AI-powered threat detection

Email Security Platforms

Compare

TitanHQ SpamTitan

Email security platform blocking spam, phishing, malware, and viruses

Email Security Platforms

Compare

Bitdefender GravityZone Security for Exchange

Email security for Microsoft Exchange servers with antispam and antimalware.

Email Security Platforms

Compare

Broadcom Symantec Email Security

Enterprise email security platform for cloud and on-premise deployments

Email Security Platforms

Compare

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

Email Security Platforms

Compare

Fortra Email Security & Anti-Phishing

Email security platform protecting against phishing, BEC, and data loss

Email Security Platforms

Compare

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

Email Security Platforms

Compare

VIPRE Integrated Email Security (IES)

Email security platform for Microsoft 365 with AI-based threat detection

Email Security Platforms

Compare

Cybersentriq MX Email Threat Protection

MX-based email security platform using AI to block spam, phishing & malware

Email Security Platforms

Compare

Vircom Email Security

Email security platform enhanced with multi-tenant mgmt & automation tools

Email Security Platforms

Compare

GLIMPS Email Security for M365

AI-based email security for M365 with phishing, BEC & malware detection.

Email Security Platforms

Compare

MailGuard Email Security

Cloud-based email filtering blocking phishing, malware, spam & BEC attacks.

Email Security Platforms

Compare

Cloud-based anti-spam and antivirus email filtering with AI threat detection.

Email Security Platforms

Compare

SpamTitan for Office 365

Email security layer for M365 with anti-phishing, sandboxing, and DLP.

Email Security Platforms

Compare

Unified AI-powered cybersecurity & cyber insurance platform for SMBs.

Email Security Platforms

Compare

Cisco Secure Email Threat Defense

Email threat protection for Microsoft 365 with advanced detection capabilities

Email Security Platforms

Compare

Fortinet FortiMail Email Security

AI-powered email security platform protecting against phishing, BEC, and ATO

Email Security Platforms

Compare

INKY Behavioral Email Security Platform

Behavioral email security platform protecting inbound, outbound, and internal mail

Email Security Platforms

Compare

Mimecast Advanced Email Security

Email security platform protecting M365 & Google Workspace from threats

Email Security Platforms

Compare

Egress Intelligent Email Security

Cloud email security platform for inbound/outbound threat detection & DLP

Email Security Platforms

Compare

SpamExperts Incoming Email Filtering

Email filtering service protecting against spam, viruses, and phishing.

Email Security Platforms

Compare

Mailinblack U-Cyber 360°

Comprehensive email security & human risk mgmt platform with AI-powered protection

Email Security Platforms

Compare

ID Agent Graphus

AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.

Email Security Platforms

Compare

Cloud-based managed email filtering against phishing, ransomware & BEC.

Email Security Platforms

Compare

TitanHQ Security Bundles

Tiered cybersecurity bundles combining email, DNS, backup & SAT.

Email Security Platforms

Compare

Ocean Agentic Email Security Platform

Agentic AI email security platform that investigates emails pre-delivery.

Email Security Platforms

Compare

Cloudflare Cloud Email Security

Cloudflare Cloud Email Security is a cloud-based email protection service that safeguards organizations against phishing, malware, spam, and other email-borne threats through integrated threat detection and prevention capabilities.

Email Security Platforms

Compare

Email security platform with phishing/BEC protection and MDR/XDR integration

Email Security Platforms

Compare

Zivver Secure Business Email

All-in-one email security platform for threat protection and compliance

Email Security Platforms

Compare

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

Email Security Platforms

Compare

MDaemon Technologies SecurityGateway

Email security gateway protecting against spam, phishing, viruses & data leaks

Email Security Platforms

Compare

xorlab Email Security

AI-driven email security platform for detecting advanced email threats

Email Security Platforms

Compare

Trend Micro Trend Vision One™

AI-powered email and collaboration security platform for threat detection

Email Security Platforms

Compare

LevelBlue Email Security

Managed email security service protecting against email-based threats

Email Security Platforms

Compare

Proofpoint Threat Protection

Email security platform with AI-based threat detection and DLP capabilities

Email Security Platforms

Compare

AnubisNetworks Email Security

Email security platform protecting against fraud, malware, and spam threats

Email Security Platforms

Compare

Abnormal Inbound Email Security

AI-powered email security platform detecting advanced threats via behavioral analysis

Email Security Platforms

Compare

MX Layer Outbound Email Filtering

Outbound email filtering platform for spam prevention and IP reputation mgmt

Email Security Platforms

Compare

Altospam Mailsafe

Cloud-based anti-spam solution filtering inbound email threats

Email Security Platforms

Also compare alternatives to:

ESET Cloud Office Security alternatives Bitdefender GravityZone Extended Email Security alternatives Mesh 365 alternatives ConnectWise Email Security alternatives Cellopoint Cloud Email Security Solution alternatives KnowBe4 Cloud Email Security alternatives Microsoft Defender for Office 365 alternatives TrustLayer Mail alternatives SorbSecurity Cloud Email Security alternatives MX Layer Email Security alternatives TitanHQ SpamTitan alternatives Bitdefender GravityZone Security for Exchange alternatives

Compare ESET Mail Security with:

ESET Mail Security vs ESET Cloud Office Security ESET Mail Security vs Bitdefender GravityZone Extended Email Security ESET Mail Security vs Mesh 365 ESET Mail Security vs ConnectWise Email Security ESET Mail Security vs Cellopoint Cloud Email Security Solution ESET Mail Security vs KnowBe4 Cloud Email Security ESET Mail Security vs Microsoft Defender for Office 365 ESET Mail Security vs TrustLayer Mail

ESET Mail Security Alternatives FAQ

Common questions security professionals ask when evaluating alternatives and competitors to ESET Mail Security.

What are the best alternatives to ESET Mail Security?

The most popular alternatives to ESET Mail Security include ESET Cloud Office Security, Bitdefender GravityZone Extended Email Security, Mesh 365, ConnectWise Email Security, and Cellopoint Cloud Email Security Solution. These Email Security Platforms tools offer similar capabilities and are frequently compared by security professionals evaluating their options.

How many alternatives to ESET Mail Security are available?

There are 48 alternatives to ESET Mail Security listed on CybersecTools, all within the Email Security Platforms category. Each alternative is matched based on shared capabilities, tags, and NIST CSF coverage areas.

Is ESET Mail Security free or commercial?

ESET Mail Security is a commercial Email Security Platforms tool. It requires a paid license or subscription. Both free and commercial alternatives are available for comparison.

What type of tool is ESET Mail Security?

ESET Mail Security is a Email Security Platforms tool within the broader Email & Messaging Security category. It is used by security professionals for email security platforms capabilities and can be compared against 48 similar tools.

Have more questions? Browse our categories or search for specific tools.

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