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Best Mimecast Advanced Email Security Alternatives & Competitors in 2026 | CybersecTools

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Mimecast Advanced Email Security

Best Mimecast Advanced Email Security Alternatives & Competitors in 2026

Top picks: Fortinet FortiMail Email Security, VIPRE Integrated Email Security (IES), Egress Intelligent Email Security — plus 45 more compared.

Mimecast Advanced Email Security Alternatives and Competitors

Mimecast Advanced Email Security is a commercial Email Security Platforms tool developed by Mimecast. Security professionals most commonly compare it with . All 48 alternatives are matched by shared capabilities, tags, and NIST CSF 2.0 coverage.

Fortinet FortiMail Email Security

, VIPRE Integrated Email Security (IES)

, Egress Intelligent Email Security

, Abnormal Security Cloud-based email security platform

, and Cisco Secure Email Threat Defense

Data verified May 2026

View Mimecast Advanced Email Security All Email Security Compare Stacks Market Map Explore All Tools

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Top Mimecast Advanced Email Security Alternatives and Competitors at a Glance

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

Fortinet FortiMail Email Security

Commercial

Email Security Platforms

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

Key features: AI-powered threat detection using ML and LLM, Multi-layered email scanning with heuristics and optical recognition, Inbound and outbound email protection, Business email compromise and account takeover prevention, Data loss prevention with email encryption

View Fortinet FortiMail Email Security|Fortinet FortiMail Email Security alternatives|Compare Fortinet FortiMail Email Security

VIPRE Integrated Email Security (IES)

Commercial

Email Security Platforms

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

Key features: AI-based phishing and BEC detection, Semantic similarity matching for impersonation detection, Intent matching for social engineering detection, Inbound, outbound, and internal email protection, Native Microsoft 365 integration

View VIPRE Integrated Email Security (IES)|VIPRE Integrated Email Security (IES) alternatives|Compare VIPRE Integrated Email Security (IES)

Egress Intelligent Email Security

Commercial

Email Security Platforms

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

Key features: Inbound phishing threat detection and prevention, Outbound data loss prevention, End-to-end email encryption, Contextual machine learning and social graph analysis, Human risk scoring for individual users

View Egress Intelligent Email Security|Egress Intelligent Email Security alternatives|Compare Egress Intelligent Email Security

Abnormal Security Cloud-based email security platform

Commercial

Email Security Platforms

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

Key features: Behavioral AI-based detection of email attacks, Protection against phishing and business email compromise, Account takeover detection and remediation, Zero-day attack detection, API-based deployment

View Abnormal Security Cloud-based email security platform|Abnormal Security Cloud-based email security platform alternatives|Compare Abnormal Security Cloud-based email security platform

Cisco Secure Email Threat Defense

Commercial

Email Security Platforms

Email threat protection for Microsoft 365 with advanced detection capabilities

Key features: Advanced threat detection for known, emerging, and targeted threats, Malicious technique identification with business risk context, Real-time threat search and remediation, Searchable threat telemetry and categorization, Vulnerability assessment by organizational unit

View Cisco Secure Email Threat Defense|Cisco Secure Email Threat Defense alternatives|Compare Cisco Secure Email Threat Defense

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

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

Hornetsecurity 365 Total Protection

Commercial

Email Security Platforms

Comprehensive M365 security suite with email protection, backup, and compliance

Key features: Spam and malware filtering, Advanced threat protection with sandboxing and URL rewriting, Business email compromise detection, Automated email encryption, Email archiving

View Hornetsecurity 365 Total Protection|Hornetsecurity 365 Total Protection alternatives|Compare Hornetsecurity 365 Total Protection

All 48 Alternatives & Competitors to Mimecast Advanced Email Security

Compare

Fortinet FortiMail Email Security

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

Email Security Platforms

Compare

VIPRE Integrated Email Security (IES)

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

Email Security Platforms

Compare

Egress Intelligent Email Security

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

Email Security Platforms

Compare

Abnormal Security Cloud-based email security platform

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

Email Security Platforms

Compare

Cisco Secure Email Threat Defense

Email threat protection for Microsoft 365 with advanced detection capabilities

Email Security Platforms

Compare

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

Email Security Platforms

Compare

Cellopoint Cloud Email Security Solution

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

Email Security Platforms

Compare

Hornetsecurity 365 Total Protection

Comprehensive M365 security suite with email protection, backup, and compliance

Email Security Platforms

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

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

Email Security Platforms

Compare

Mimecast Collaboration Threat Protection

Secures Microsoft Teams, SharePoint & OneDrive from malware and phishing

Email Security Platforms

Compare

API-based email security platform for Microsoft 365 environments

Email Security Platforms

Compare

KnowBe4 Cloud Email Security

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

Email Security Platforms

Compare

ConnectWise Email Security

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

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

SourcetekIT Email Security Service

Managed email security service for Office 365 using Cisco's platform.

Email Security Platforms

Compare

Vade (Hornetsecurity) 365 Total Protection

AI-powered email security platform for Microsoft 365 with backup & compliance.

Email Security Platforms

Compare

odix FileWallTM for Microsoft 365

File-based threat protection for Microsoft 365 using CDR technology

Email Security Platforms

Compare

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

Email Security Platforms

Compare

Proofpoint Threat Protection

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

Email Security Platforms

Compare

Material Security Email Security

Cloud workspace security platform for email, files, and account protection

Email Security Platforms

Compare

Comodo Secure Email Gateway

Cloud-based email gateway with spam filtering, anti-phishing, and containment

Email Security Platforms

Compare

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

Email Security Platforms

Compare

BLOKWORX SCUD + CDR

Cloud-native API-based email & collaboration security with CDR for SaaS.

Email Security Platforms

Compare

Messageware EPG

On-premises Exchange Server security tool for protocol-level 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

AI-Powered Email Security & DMARC Protection

AI-powered DMARC monitoring and email authentication security platform

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

INKY Behavioral Email Security Platform

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

Email Security Platforms

Compare

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

Email Security Platforms

Compare

Hornetsecurity Advanced Threat Protection

AI-powered email security platform protecting against advanced threats

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

GreatHorn Email Security

Cloud-native email security platform for phishing detection and response

Email Security Platforms

Compare

Zivver Secure Business Email

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

Email Security Platforms

Compare

MX Layer Email Security

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

Email Security Platforms

Compare

Trend Micro Trend Vision One™

AI-powered email and collaboration security platform for threat detection

Email Security Platforms

Compare

AnubisNetworks Email Security

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

Email Security Platforms

Compare

ESET Mail Security

Email security for Microsoft Exchange servers with anti-spam and anti-malware

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

Darktrace Email Security

AI-powered email security platform detecting threats across email and messaging

Email Security Platforms

Compare

Fortra Email Security & Anti-Phishing

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

Email Security Platforms

Compare

VIPRE Email Archiving

Cloud-based email archiving solution for compliance and e-discovery

Email Security Platforms

Compare

Cybersentriq MX Email Threat Protection

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

Email Security Platforms

Also compare alternatives to:

Fortinet FortiMail Email Security alternatives VIPRE Integrated Email Security (IES) alternatives Egress Intelligent Email Security alternatives Abnormal Security Cloud-based email security platform alternatives Cisco Secure Email Threat Defense alternatives Microsoft Defender for Office 365 alternatives Cellopoint Cloud Email Security Solution alternatives Hornetsecurity 365 Total Protection alternatives ESET Cloud Office Security alternatives Bitdefender GravityZone Extended Email Security alternatives OPSWAT MetaDefender Email Security alternatives Mimecast Collaboration Threat Protection alternatives

Compare Mimecast Advanced Email Security with:

Mimecast Advanced Email Security vs Fortinet FortiMail Email Security Mimecast Advanced Email Security vs VIPRE Integrated Email Security (IES)Mimecast Advanced Email Security vs Egress Intelligent Email Security Mimecast Advanced Email Security vs Abnormal Security Cloud-based email security platform Mimecast Advanced Email Security vs Cisco Secure Email Threat Defense Mimecast Advanced Email Security vs Microsoft Defender for Office 365 Mimecast Advanced Email Security vs Cellopoint Cloud Email Security Solution Mimecast Advanced Email Security vs Hornetsecurity 365 Total Protection

Mimecast Advanced Email Security Alternatives FAQ

Common questions security professionals ask when evaluating alternatives and competitors to Mimecast Advanced Email Security.

What are the best alternatives to Mimecast Advanced Email Security?

The most popular alternatives to Mimecast Advanced Email Security include Fortinet FortiMail Email Security, VIPRE Integrated Email Security (IES), Egress Intelligent Email Security, Abnormal Security Cloud-based email security platform, and Cisco Secure Email Threat Defense. These Email Security Platforms tools offer similar capabilities and are frequently compared by security professionals evaluating their options.

How many alternatives to Mimecast Advanced Email Security are available?

Is Mimecast Advanced Email Security free or commercial?

What type of tool is Mimecast Advanced Email Security?

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

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