Best Cloudflare Cloud Email Security Alternatives & Competitors in 2026

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

Cybersentriq MX Email Threat Protection

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

Halon

Composable email infrastructure platform with threat detection and AI ops.

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

MX Layer Email Security

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

SpamTitan

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

GreatHorn Email Security

Cloud-native email security platform for phishing detection and response

MDaemon Technologies SecurityGateway

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

LevelBlue Email Security

Managed email security service protecting against email-based threats

TitanHQ SpamTitan

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

Comodo Secure Email Gateway

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

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

MX Layer Outbound Email Filtering

Outbound email filtering platform for spam prevention and IP reputation mgmt

Trustifi Inbound Shield

AI-powered inbound email security platform for phishing & malware detection

SpamExperts Email Security

Email security platform filtering spam, phishing, and malware threats

SpamExperts Incoming Email Filtering

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

SmarterTools SmarterMail

Email server with antispam, antivirus, and security features for Linux/Windows

Cybonet Mail Secure

Email security gateway with anti-spam, AV, sandboxing, and DLP.

ID Agent Graphus

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

MailGuard Email Security

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

SpamTitan for Office 365

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

SpamTitan Gateway

Email security gateway appliance for spam/malware filtering and mail flow control.

Ocean Agentic Email Security Platform

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

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

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

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

Bitdefender GravityZone Security for Exchange

Email security for Microsoft Exchange servers with antispam and antimalware.

Bitdefender GravityZone Extended Email Security

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

Broadcom Symantec Email Security

Enterprise email security platform for cloud and on-premise deployments

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

Altospam Mailsafe

Cloud-based anti-spam solution filtering inbound email threats

VIPRE Integrated Email Security (IES)

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

MDaemon Technologies MDaemon AntiVirus

Email antivirus and antispam solution for MDaemon email servers

Mesh 365

API-based email security platform for Microsoft 365 environments

Cloudmark Authority

Carrier-grade email security for ISPs blocking spam, phishing, and malware

ConnectWise Email Security

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

SpamExperts Outbound Email Protection

Outbound email filtering to block spam, phishing, and malware traffic.

Mailinblack U-Cyber 360°

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

Abusix Guardian Mail

Email threat protection using blocklists, blocking 99.6%+ of email threats.

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.

MailChannels cPanel Plugin

cPanel/WHM plugin for provisioning MailChannels email security for hosting customers.

MailChannels Outbound Filtering

Cloud SMTP relay for hosting providers to filter outbound spam & protect IP reputation.

MailGuard

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

TitanHQ Security Bundles

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