Top GreatHorn Alternatives

HornetSecurity

HornetSecurity offers a comprehensive security solution for Microsoft 365, including email protection, compliance, backup, and recovery features.

Mimecast

Mimecast provides email security against threats like phishing and ransomware, using AI to enhance detection and offering flexible deployment options.

Proofpoint

Proofpoint offers cloud-based cybersecurity solutions for email security, data loss prevention, and compliance, protecting against threats and ensuring secure communication.

N-able Mail Assure

Cloud email security and filtering service that scans inbound, outbound, and internal mail to block spam, phishing and malware; provides continuity, encrypted archiving, quarantine and admin controls.

Mailinblack

Mailinblack is an email security app that protects users from phishing, malware, and spam while helping organizations manage email threats effectively.

Barracuda

Barracuda is a cybersecurity app that protects organizations from email threats, data breaches, and network vulnerabilities through integrated security solutions.

Microsoft 365 Defender

Protects organizations by detecting, investigating, and responding to threats across email, endpoints, identities, and cloud apps with integrated detection, automation, and analytics.

MailRoute

MailRoute is a cloud-hosted email gateway that filters inbound and outbound mail for spam, viruses, malware and phishing, and provides continuity during server outages.

Securence

Securence scans and filters incoming email for organizations to block viruses, malware, malicious attachments and spam, providing real-time protection and 24/7 monitoring.

TitanHQ

TitanHQ is a cybersecurity platform that provides email security solutions to protect against phishing, ransomware, and spam, including user training and data leak prevention.

Trustifi

Trustifi is an email security platform that protects sensitive data with encryption, threat detection, and compliance tools for organizations handling confidential information.

MailChannels

MailChannels is a cloud-based email service that enhances delivery reliability and security, preventing spam and ensuring legitimate emails reach their recipients.

KnowBe4

KnowBe4 provides security awareness training and simulated phishing to help organizations educate employees about social engineering and improve security decisions.

Ṣọ Email Security

Protects inboxes from phishing, scams, spam and other email attacks using secure login, threat detection, filtering and monitoring; provides tools to manage email security.

Fortra

Fortra offers integrated cybersecurity solutions to protect organizations from evolving threats, providing services like data security, threat detection, and infrastructure protection.

Coro

Coro is a cybersecurity platform that secures email, data, endpoints, and cloud apps using AI for easy management and threat remediation.

Sentaro

Sentaro analyzes business emails to detect phishing, impersonation, fraud, malware, and other social engineering threats in Microsoft 365 and Google Workspace.

Red Sift

Red Sift is a cybersecurity app that helps organizations manage email security, track threats, and recover from cyber attacks through integrated applications and AI.

Skysnag

Skysnag is an app that protects organizations from email impersonation and phishing attacks by automating DMARC compliance and enhancing email security.

Bulletproof Inbox

Bulletproof Inbox is an email optimization tool for Gmail and Outlook that filters unwanted messages and allows only approved senders in the primary inbox.

Threatcop DMARC

Threatcop DMARC is an email security tool that implements DMARC protocols to authenticate emails, monitor threats, and reduce phishing risks for organizations.

PreVeil

PreVeil offers encrypted email and file sharing for secure communications and compliance, integrating with existing platforms while protecting sensitive data.