Best ESET Cloud Office Security Alternatives & Competitors in 2026

Cybersentriq MX Email Threat Protection

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

Vade (Hornetsecurity) 365 Total Protection

AI-powered email security platform for Microsoft 365 with backup & compliance.

SourcetekIT Email Security Service

Managed email security service for Office 365 using Cisco's platform.

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.

SorbSecurity Cloud Email Security

Cloud-based email security platform protecting against phishing & ransomware

MX Layer Email Security

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

Bitdefender GravityZone Extended Email Security

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

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

Mesh 365

API-based email security platform for Microsoft 365 environments

ConnectWise Email Security

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

Blaze Networks Blaze Screen

Managed email filtering service with threat detection and spam prevention

SpamTitan

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

Cellopoint Cloud Email Security Solution

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

Hornetsecurity Advanced Threat Protection

AI-powered email security platform protecting against advanced threats

odix FileWallTM for Microsoft 365

File-based threat protection for Microsoft 365 using CDR technology

TitanHQ SpamTitan

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

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

KnowBe4 Cloud Email Security

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

SpamExperts Incoming Email Filtering

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

ATG Managed Email Security

Managed cloud email security service with anti-spam, anti-phishing, and DLP.

Cybonet Mail Secure

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

Halon

Composable email infrastructure platform with threat detection and AI ops.

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.

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

Trend Micro Trend Vision One™

AI-powered email and collaboration security platform for threat detection

AnubisNetworks Email Security

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

ESET Mail Security

Email security for Microsoft Exchange servers with anti-spam and anti-malware

Bitdefender GravityZone Security for Exchange

Email security for Microsoft Exchange servers with antispam and antimalware.

Broadcom Symantec Email Security

Enterprise email security platform for cloud and on-premise deployments

VIPRE Integrated Email Security (IES)

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

Mimecast Collaboration Threat Protection

Secures Microsoft Teams, SharePoint & OneDrive from malware and phishing

Mailinblack U-Cyber 360°

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

GLIMPS Email Security for M365

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

MailGuard

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

TitanHQ Security Bundles

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

Upfort

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

Cisco Secure Email Threat Defense

Email threat protection for Microsoft 365 with advanced detection capabilities

Fortinet FortiMail Email Security

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

INKY Behavioral Email Security Platform

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

Hornetsecurity 365 Total Protection

Comprehensive M365 security suite with email protection, backup, and compliance

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

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

Comodo Secure Email Gateway

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

Fortra Email Security & Anti-Phishing

Email security platform protecting against phishing, BEC, and data loss