Best Standss EmailMerge COM Add-in Alternatives & Competitors in 2026

Microsoft Defender for Office 365

Email and collaboration security for Microsoft 365 environments

Hornetsecurity 365 Total Protection

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

TitanHQ Cybersecurity Bundles

Bundled cybersecurity solutions for MSPs and end users with email protection

INKY Graymail Protection

Filters bulk and graymail to reduce email distractions and boost productivity

KnowBe4 Cloud Email Security

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

ConnectWise Email Security

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

Vircom Email Security

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

TitanHQ Security Bundles

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

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

TrustLayer Mail

Email security platform with inline threat protection and compliant archiving

odix FileWallTM for Microsoft 365

File-based threat protection for Microsoft 365 using CDR technology

Mimecast Advanced Email Security

Email security platform protecting M365 & Google Workspace from threats

ESET Cloud Office Security

Cloud email security for Microsoft 365 and Google Workspace applications

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.

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

VIPRE Email Archiving

Cloud-based email archiving solution for compliance and e-discovery

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

Abnormal Security Cloud-based email security platform

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

GLIMPS Email Security for M365

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

Messageware EPG

On-premises Exchange Server security tool for protocol-level threat detection.

SourcetekIT Email Security Service

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

SpamTitan for Office 365

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

Vade (Hornetsecurity) 365 Total Protection

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

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

GreatHorn Email Security

Cloud-native email security platform for phishing detection and response

Zivver Secure Business Email

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

Trustifi AI Powered Email Security

AI-powered email security platform for threat detection and compliance

xorlab Email Security

AI-driven email security platform for detecting advanced email threats

Proofpoint Threat Protection

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

Broadcom Symantec Email Security

Enterprise email security platform for cloud and on-premise deployments

InSAT Security Inbox

Centralized platform for reporting, analyzing, and responding to email threats

ThreatDown Email Security

AI-powered email security platform for phishing and BEC protection

IRONSCALES Adaptive AI Email Security

AI-powered email security platform with behavioral detection and automation

Mailinblack U-Cyber 360°

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

Cyber Cops Email Security

Cloud-based email security service protecting against phishing, malware & BEC

Strongest Layer

AI-native email security platform detecting phishing and BEC attacks

Infonaligy Proofpoint Email Security

Managed Proofpoint email security service for phishing & BEC protection.

Upfort

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

AI-Powered Email Security & DMARC Protection

AI-powered DMARC monitoring and email authentication security 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.