The closest Mimecast Advanced Email Security alternatives are Fortra Email Security & Anti-Phishing, Fortinet FortiMail Email and Workspace Security and Cellopoint Cloud Email Security Solution. Picking a Mimecast Advanced Email Security alternative comes down to fit: Email Security Platforms coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
44 alternativesClosest matches: Fortra Email Security & Anti-Phishing, Fortinet FortiMail Email and Workspace Security, Cellopoint Cloud Email Security SolutionPage updated Nov 2026
The product
Mimecast Advanced Email Security
by Mimecast
Email security platform protecting M365 & Google Workspace from threats
Mimecast Advanced Email Security is a commercial Email Security Platforms solution made by Mimecast. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Fortinet FortiMail Email and Workspace Security, Cellopoint Cloud Email Security Solution, ESET Cloud Office Security, and Bitdefender GravityZone Extended Email Security. All 44 alternatives on this page are ranked the same way.
These 8 solutions overlap most with Mimecast Advanced Email Security. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Email security platform protecting against phishing, BEC, and data loss
Key features: DMARC email authentication and enforcement, Business email compromise detection, Spear phishing protection, Account takeover detection, Data loss prevention for sensitive data
Email security platform protecting against phishing, BEC, and data loss
AI-powered email security platform protecting against phishing, BEC, and ATO
Cloud-based email security platform protecting against phishing, ransomware, BEC
Cloud email security for Microsoft 365 and Google Workspace applications
Cloud-native email security platform with SEG and API-based protection
Email security platform protecting against phishing, malware, and exploits
Email security platform for Microsoft 365 with AI-based threat detection
AI-driven email security platform for Microsoft 365 inbound/outbound threats
Email security platform with AI threat detection, BEC protection, and DLP
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Agentic AI email security platform that investigates emails pre-delivery.
Email and collaboration security for Microsoft 365 environments
Email threat protection for Microsoft 365 with advanced detection capabilities
Email security platform enhanced with multi-tenant mgmt & automation tools
AI-based email security for M365 with phishing, BEC & malware detection.
Email security layer for M365 with anti-phishing, sandboxing, and DLP.
Cloud security platform for M365 covering email, backup, and awareness.
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.
Behavioral email security platform protecting inbound, outbound, and internal mail
Email security platform with phishing/BEC protection and MDR/XDR integration
Email security platform with inline threat protection and compliant archiving
Cloud-based email security platform protecting against phishing & ransomware
AI-powered email security platform for threat detection and compliance
Cloud-based email security platform with AI-powered threat detection
AI-powered email and collaboration security platform for threat detection
Email security platform with AI-based threat detection and DLP capabilities
Email security platform protecting against fraud, malware, and spam threats
Cloud workspace security platform for email, files, and account protection
AI-powered DMARC monitoring and email authentication security platform
Enterprise email security platform for cloud and on-premise deployments
AI-powered email security platform detecting threats across email and messaging
Bundled cybersecurity solutions for MSPs and end users with email protection
MX-based email security platform using AI to block spam, phishing & malware
Email filtering service protecting against spam, viruses, and phishing.
Managed Proofpoint email security service for phishing & BEC protection.
DMARC monitoring platform protecting domains from spoofing and BEC attacks.
Cloud-native AI email security platform with LLM-based threat detection and DLP.
Cloud-based email security service that blocks spam, phishing, malware, and fraud attacks
Email gateway that blocks spam, phishing and malware before inbox delivery, made
Cloud-native email security platform for phishing detection and response
All-in-one email security platform for threat protection and compliance
Email security gateway protecting against spam, phishing, viruses & data leaks
Common questions when weighing alternatives to Mimecast Advanced Email Security.
The closest matches to Mimecast Advanced Email Security by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Fortinet FortiMail Email and Workspace Security, Cellopoint Cloud Email Security Solution, ESET Cloud Office Security, and Bitdefender GravityZone Extended Email Security. All of them are Email Security Platforms products.
This page shows 44 alternatives to Mimecast Advanced Email Security, all in the Email Security Platforms category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
Mimecast Advanced Email Security is a commercial Email Security Platforms product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
Mimecast Advanced Email Security is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 44 other Email Security Platforms products on this page.
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternativesMimecast Advanced Email Security vs Fortra Email Security & Anti-Phishing
AI-powered email security platform protecting against phishing, BEC, and ATO
Key features: 10 listed. See them on the Fortinet FortiMail Email and Workspace Security page.
View Fortinet FortiMail Email and Workspace SecurityFortinet FortiMail Email and Workspace Security alternativesMimecast Advanced Email Security vs Fortinet FortiMail Email and Workspace Security
Cloud-based email security platform protecting against phishing, ransomware, BEC
Key features: 8 listed. See them on the Cellopoint Cloud Email Security Solution page.
View Cellopoint Cloud Email Security SolutionCellopoint Cloud Email Security Solution alternativesMimecast Advanced Email Security vs Cellopoint Cloud Email Security Solution
Cloud email security for Microsoft 365 and Google Workspace applications
Key features: 10 listed. See them on the ESET Cloud Office Security page.
View ESET Cloud Office SecurityESET Cloud Office Security alternativesMimecast Advanced Email Security vs ESET Cloud Office Security
Cloud-native email security platform with SEG and API-based protection
Key features: 10 listed. See them on the Bitdefender GravityZone Extended Email Security page.
View Bitdefender GravityZone Extended Email SecurityBitdefender GravityZone Extended Email Security alternativesMimecast Advanced Email Security vs Bitdefender GravityZone Extended Email Security
Email security platform protecting against phishing, malware, and exploits
Key features: 10 listed. See them on the OPSWAT MetaDefender Email Security page.
View OPSWAT MetaDefender Email SecurityOPSWAT MetaDefender Email Security alternativesMimecast Advanced Email Security vs OPSWAT MetaDefender Email Security
Email security platform for Microsoft 365 with AI-based threat detection
Key features: 10 listed. See them on the VIPRE Integrated Email Security (IES) page.
View VIPRE Integrated Email Security (IES)VIPRE Integrated Email Security (IES) alternativesMimecast Advanced Email Security vs VIPRE Integrated Email Security (IES)
API-based email security platform for Microsoft 365 environments
Key features: 10 listed. See them on the Mesh 365 page.
View Mesh 365Mesh 365 alternativesMimecast Advanced Email Security vs Mesh 365
Need the answer fast? Best Email Security Solutions for Business picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.See the shortlist