Best LevelBlue Email Security Alternatives & Competitors in 2026

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.

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

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

Trustifi Inbound Shield

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

Cybersentriq MX Email Threat Protection

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

SpamExperts Email Security

Email security platform filtering spam, phishing, and malware threats

MailGuard Email Security

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

SpamTitan

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

MDaemon Technologies SecurityGateway

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

TitanHQ SpamTitan

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

Bitdefender GravityZone Security for Exchange

Email security for Microsoft Exchange servers with antispam and antimalware.

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

Altospam Mailsafe

Cloud-based anti-spam solution filtering inbound email threats

MDaemon Technologies MDaemon AntiVirus

Email antivirus and antispam solution for MDaemon email servers

Cloudmark Authority

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

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

Abusix Guardian Mail

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

Cybonet Mail Secure

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

Halon

Composable email infrastructure platform with threat detection and AI ops.

ID Agent Graphus

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

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

xorlab Email Security

AI-driven email security platform for detecting advanced email threats

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

Abnormal Inbound Email Security

AI-powered email security platform detecting advanced threats via behavioral analysis

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

VIPRE Integrated Email Security (IES)

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

Mesh 365

API-based email security platform for Microsoft 365 environments

Sublime Email Security

AI-powered email security platform with agentic automation and detection

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.

Group-IB Business Email Protection

Email security platform protecting against phishing, malware, and BEC attacks

AegisAI Agentic Email Security

AI-powered email security platform that detects phishing, BEC, and malware

Mailinblack U-Cyber 360°

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

Cybonet Outbound Spam Guard (OSG)

Carrier-grade outbound spam & botnet detection solution for ISPs.

GLIMPS Email Security for M365

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