Best Bitdefender GravityZone Security for Exchange Alternatives & Competitors in 2026

SpamTitan for Office 365

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

ID Agent Graphus

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

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

OPSWAT MetaDefender Email Security

Email security platform protecting against phishing, malware, and exploits

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

GLIMPS Email Security for M365

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

TitanHQ Security Bundles

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

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

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.

TrustLayer Mail

Email security platform with inline threat protection and compliant archiving

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

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

ESET Mail Security

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

TitanHQ SpamTitan

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

Bitdefender GravityZone Extended Email Security

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

VIPRE Integrated Email Security (IES)

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

Trustifi Inbound Shield

AI-powered inbound email security platform for phishing & malware 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

Cybersentriq MX Email Threat Protection

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

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 Email Security

Email security platform filtering spam, phishing, and malware threats

Vircom Email Security

Email security platform enhanced with multi-tenant mgmt & automation tools

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.

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.

SpamTitan Gateway

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

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

Cellopoint Cloud Email Security Solution

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

Mimecast Advanced Email Security

Email security platform protecting M365 & Google Workspace from threats

Comodo Secure Email Gateway

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

Egress Intelligent Email Security

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

KnowBe4 Cloud Email Security

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

SpamExperts Outbound Email Protection

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

SpamExperts Incoming Email Filtering

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

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.