The closest TrustLayer Mail alternatives are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365 and Fortinet FortiMail Email and Workspace Security. Picking a TrustLayer Mail 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.
41 alternativesClosest matches: Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace SecurityPage updated Nov 2026
The product
by TrustLayer
Email security platform with inline threat protection and compliant archiving
TrustLayer Mail is a commercial Email Security Platforms solution made by TrustLayer. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace Security, Cellopoint Cloud Email Security Solution, and Mimecast Advanced Email Security. All 41 alternatives on this page are ranked the same way.
These 8 solutions overlap most with TrustLayer Mail. 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
Email and collaboration security for Microsoft 365 environments
AI-powered email security platform protecting against phishing, BEC, and ATO
Cloud-based email security platform protecting against phishing, ransomware, BEC
Email security platform protecting M365 & Google Workspace from threats
Cloud email security for Microsoft 365 and Google Workspace applications
Email security for Microsoft Exchange servers with antispam and antimalware.
Email security platform protecting against phishing, malware, and exploits
Email security platform for Microsoft 365 with AI-based threat detection
Email threat protection for Microsoft 365 with advanced detection capabilities
AI-driven email security platform for Microsoft 365 inbound/outbound threats
Email security platform with AI threat detection, BEC protection, and DLP
Email security platform enhanced with multi-tenant mgmt & automation tools
AI-based email security for M365 with phishing, BEC & malware detection.
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Email security layer for M365 with anti-phishing, sandboxing, and DLP.
Agentic AI email security platform that investigates emails pre-delivery.
Cloud security platform for M365 covering email, backup, and awareness.
Email gateway that blocks spam, phishing and malware before inbox delivery, made
Bundled cybersecurity solutions for MSPs and end users with email protection
Filters bulk and graymail to reduce email distractions and boost productivity
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 platform with phishing/BEC protection and MDR/XDR integration
Cloud-based email security platform protecting against phishing & ransomware
Cloud-native email security platform for phishing detection and response
All-in-one email security platform for threat protection and compliance
AI-powered email security platform for threat detection and compliance
Email security gateway protecting against spam, phishing, viruses & data leaks
Cloud-based email security platform with AI-powered threat detection
AI-driven email security platform for detecting advanced email threats
Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols
AI-powered email and collaboration security platform for threat detection
Managed email security service protecting against email-based threats
Email security platform with AI-based threat detection and DLP capabilities
Email security platform protecting against fraud, malware, and spam threats
AI-powered email security platform detecting advanced threats via behavioral analysis
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
Common questions when weighing alternatives to TrustLayer Mail.
The closest matches to TrustLayer Mail by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace Security, Cellopoint Cloud Email Security Solution, and Mimecast Advanced Email Security. All of them are Email Security Platforms products.
This page shows 41 alternatives to TrustLayer Mail, 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.
TrustLayer Mail 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.
TrustLayer Mail is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 41 other Email Security Platforms products on this page.
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternativesTrustLayer Mail vs Fortra Email Security & Anti-Phishing
Email and collaboration security for Microsoft 365 environments
Key features: 10 listed. See them on the Microsoft Defender for Office 365 page.
View Microsoft Defender for Office 365Microsoft Defender for Office 365 alternativesTrustLayer Mail vs Microsoft Defender for Office 365
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 alternativesTrustLayer Mail 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 alternativesTrustLayer Mail vs Cellopoint Cloud Email Security Solution
Email security platform protecting M365 & Google Workspace from threats
Key features: 10 listed. See them on the Mimecast Advanced Email Security page.
View Mimecast Advanced Email SecurityMimecast Advanced Email Security alternativesTrustLayer Mail vs Mimecast Advanced Email Security
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 alternativesTrustLayer Mail vs ESET Cloud Office Security
Email security for Microsoft Exchange servers with antispam and antimalware.
Key features: 10 listed. See them on the Bitdefender GravityZone Security for Exchange page.
View Bitdefender GravityZone Security for ExchangeBitdefender GravityZone Security for Exchange alternativesTrustLayer Mail vs Bitdefender GravityZone Security for Exchange
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 alternativesTrustLayer Mail vs OPSWAT MetaDefender Email Security
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