Best AI-Powered Email Security & DMARC Protection Alternatives & Competitors in 2026

Red Sift OnDMARC

Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols

RavenMail

Cloud-native AI email security platform with LLM-based threat detection and DLP.

Cisco Secure Email Threat Defense

Email threat protection for Microsoft 365 with advanced detection capabilities

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

Fortinet FortiMail Email Security

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

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.

Cellopoint Cloud Email Security Solution

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

INKY Behavioral Email Security Platform

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

Sophos Email

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

SorbSecurity Cloud Email Security

Cloud-based email security platform protecting against phishing & ransomware

Mimecast Advanced Email Security

Email security platform protecting M365 & Google Workspace from threats

GreatHorn Email Security

Cloud-native email security platform for phishing detection and response

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

MDaemon Technologies SecurityGateway

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

MX Layer Email Security

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

Trend Micro Trend Vision One™

AI-powered email and collaboration security platform for threat detection

Proofpoint Threat Protection

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

AnubisNetworks Email Security

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

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

Material Security Email Security

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

Bitdefender GravityZone Extended Email Security

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

Comodo Secure Email Gateway

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

Broadcom Symantec Email Security

Enterprise email security platform for cloud and on-premise deployments

Darktrace Email Security

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

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

MX Layer Email Compliance

Email compliance and archiving solution with DLP and threat protection

VIPRE Integrated Email Security (IES)

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

Egress Intelligent Email Security

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

Mimecast Collaboration Threat Protection

Secures Microsoft Teams, SharePoint & OneDrive from malware and phishing

Mesh 365

API-based email security platform for Microsoft 365 environments

KnowBe4 Cloud Email Security

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

Cybersentriq MX Email Threat Protection

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

ThreatDown Email Security

AI-powered email security platform for phishing and BEC protection

ConnectWise Email Security

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

SpamExperts Incoming Email Filtering

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

Blaze Networks Blaze Screen

Managed email filtering service with threat detection and spam prevention

Abnormal Security Cloud-based email security platform

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

BLOKWORX SCUD + CDR

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

GLIMPS Email Security for M365

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

Infonaligy Proofpoint Email Security

Managed Proofpoint email security service for phishing & BEC protection.

SpamTitan

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

Upfort

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

Ocean Agentic Email Security Platform

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

odix FileWallTM for Microsoft 365

File-based threat protection for Microsoft 365 using CDR technology

Zivver Secure Business Email

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

Mesh Gateway

Email security gateway protecting against phishing, BEC, and email-borne threats

xorlab Email Security

AI-driven email security platform for detecting advanced email threats

LevelBlue Email Security

Managed email security service protecting against email-based threats