The closest Halon alternatives are Fortra Email Security & Anti-Phishing, SmarterTools SmarterMail and Cloudflare Cloud Email Security. Picking a Halon alternative comes down to fit: Email Security Platforms coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
38 alternativesClosest matches: Fortra Email Security & Anti-Phishing, SmarterTools SmarterMail, Cloudflare Cloud Email SecurityPage updated Nov 2026
The product
by Halon
Composable email infrastructure platform with threat detection and AI ops.
Halon is a commercial Email Security Platforms solution made by Halon. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, SmarterTools SmarterMail, Cloudflare Cloud Email Security, ESET Cloud Office Security, and MX Layer Outbound Email Filtering. All 38 alternatives on this page are ranked the same way.
These 8 solutions overlap most with Halon. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Email security platform protecting against phishing, BEC, and data loss
Key features: DMARC email authentication and enforcement, Business email compromise detection, Spear phishing protection, Account takeover detection, Data loss prevention for sensitive data
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternatives
Email security platform protecting against phishing, BEC, and data loss
Email server with antispam, antivirus, and security features for Linux/Windows
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.
Cloud email security for Microsoft 365 and Google Workspace applications
Outbound email filtering platform for spam prevention and IP reputation mgmt
MX-based email security platform using AI to block spam, phishing & malware
Cloud-managed DMARC record hosting with DNS-free policy management.
Cloud-based email security service that blocks spam, phishing, malware, and fraud attacks
Email authentication platform implementing DMARC, SPF, DKIM, and BIMI protocols
DMARC monitoring tool for email deliverability and brand protection
Email filtering service protecting against spam, viruses, and phishing.
Cloud-based managed email filtering against phishing, ransomware & BEC.
Platform automating DMARC compliance via record mgmt, reporting & policy enforcement.
Domain scanner & compliance tool for Gmail, Yahoo & Microsoft DMARC requirements.
Domain email-sending monitoring with DMARC/SPF/DKIM inventory, alerts and guided DNS
Email security platform with phishing/BEC protection and MDR/XDR integration
All-in-one email security platform for threat protection and compliance
AI-powered email security platform for threat detection and compliance
Email security gateway protecting against spam, phishing, viruses & data leaks
Email security platform with AI-based threat detection and DLP capabilities
Email security platform protecting against fraud, malware, and spam threats
Email security platform blocking spam, phishing, malware, and viruses
DMARC implementation & monitoring tool to prevent domain spoofing attacks
DMARC management platform for email authentication and domain protection
DMARC management platform for email authentication and domain protection
Automated DMARC enforcement platform for domain protection and email security
Email security platform enhanced with multi-tenant mgmt & automation tools
DMARC visualization tool for email domain protection and authentication
Comprehensive email security & human risk mgmt platform with AI-powered protection
Carrier-grade outbound spam & botnet detection solution for ISPs.
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Managed Proofpoint email security service for phishing & BEC protection.
Cloud email filter using block/allow lists and greylisting to reduce spam.
Agentic AI email security platform that investigates emails pre-delivery.
Cloud security platform for M365 covering email, backup, and awareness.
Cloud-based email security platform protecting against phishing & ransomware
Cloud-native email security platform for phishing detection and response
Email security gateway protecting against phishing, BEC, and email-borne threats
Common questions when weighing alternatives to Halon.
The closest matches to Halon by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, SmarterTools SmarterMail, Cloudflare Cloud Email Security, ESET Cloud Office Security, and MX Layer Outbound Email Filtering. All of them are Email Security Platforms products.
This page shows 38 alternatives to Halon, all in the Email Security Platforms category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
Halon is a commercial Email Security Platforms product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
Halon is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 38 other Email Security Platforms products on this page.
Email server with antispam, antivirus, and security features for Linux/Windows
Key features: 10 listed. See them on the SmarterTools SmarterMail page.
View SmarterTools SmarterMailSmarterTools SmarterMail alternativesHalon vs SmarterTools SmarterMail
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.
Key features: 9 listed. See them on the Cloudflare Cloud Email Security page.
View Cloudflare Cloud Email SecurityCloudflare Cloud Email Security alternativesHalon vs Cloudflare Cloud Email Security
Cloud email security for Microsoft 365 and Google Workspace applications
Key features: 10 listed. See them on the ESET Cloud Office Security page.
View ESET Cloud Office SecurityESET Cloud Office Security alternativesHalon vs ESET Cloud Office Security
Outbound email filtering platform for spam prevention and IP reputation mgmt
Key features: 10 listed. See them on the MX Layer Outbound Email Filtering page.
View MX Layer Outbound Email FilteringMX Layer Outbound Email Filtering alternativesHalon vs MX Layer Outbound Email Filtering
MX-based email security platform using AI to block spam, phishing & malware
Key features: 10 listed. See them on the Cybersentriq MX Email Threat Protection page.
View Cybersentriq MX Email Threat ProtectionCybersentriq MX Email Threat Protection alternativesHalon vs Cybersentriq MX Email Threat Protection
Cloud-managed DMARC record hosting with DNS-free policy management.
Key features: 5 listed. See them on the PowerDMARC Hosted DMARC page.
View PowerDMARC Hosted DMARCPowerDMARC Hosted DMARC alternativesHalon vs PowerDMARC Hosted DMARC
Cloud-based email security service that blocks spam, phishing, malware, and fraud attacks
Key features: 10 listed. See them on the Iberlayer Email Guardian page.
View Iberlayer Email GuardianIberlayer Email Guardian alternativesHalon vs Iberlayer Email Guardian
Need the answer fast? Best Email Security Solutions for Business picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.See the shortlist