Top 10 Best Email Compliance Software of 2026

Smarsh is a premier email compliance and archiving platform tailored for regulated industries like finance and healthcare, capturing and supervising emails across multiple channels including Office 365, Gmail, and Bloomberg. It provides tamper-proof storage, advanced search with contextual analytics, and automated supervision to detect compliance risks. With robust e-discovery and audit-ready reporting, Smarsh ensures organizations meet stringent regulations such as SEC 17a-4, FINRA, and MiFID II while scaling to handle petabytes of data.

Global Relay is a cloud-based compliance platform specializing in secure archiving, supervision, and surveillance of electronic communications, including email, instant messaging, voice, and social media. It helps regulated industries like finance meet stringent requirements from regulators such as SEC 17a-4, FINRA, and MiFID II through tamper-proof retention and advanced eDiscovery. The solution leverages AI for risk detection and provides scalable, high-availability storage with robust data sovereignty options.

Proofpoint is a leading enterprise-grade email security and compliance platform that provides robust tools for email archiving, supervision, data loss prevention (DLP), and eDiscovery to ensure regulatory adherence. It uses AI-driven analytics to monitor communications for compliance risks, prevent data leaks, and facilitate rapid legal holds and audits. Ideal for organizations handling sensitive data, it integrates seamlessly with Microsoft 365 and other ecosystems to maintain standards like GDPR, HIPAA, and SEC 17a-4.

Mimecast is a cloud-based email security and compliance platform that provides advanced archiving, eDiscovery, supervision, and data loss prevention to ensure regulatory adherence for emails and communications. It integrates threat protection with compliance tools, enabling organizations to retain data, monitor for risks like insider threats, and respond to audits efficiently. Primarily targeted at enterprises, it supports standards such as GDPR, HIPAA, and SEC 17a-4 through automated policies and searchable archives.

OpenText Retain Unified Archiving is a robust enterprise-grade solution designed for capturing, storing, and managing emails, instant messages, and other communications to meet strict regulatory compliance requirements. It provides defensible archiving with advanced search, eDiscovery, and supervision tools across platforms like Microsoft Exchange, Office 365, Google Workspace, and more. The software ensures long-term retention, audit trails, and tamper-proof storage to support legal holds and regulatory audits such as SEC 17a-4, FINRA, and GDPR.

Barracuda Message Archiver is a cloud-based email archiving solution that enables organizations to securely store, search, and retrieve emails for compliance, eDiscovery, and regulatory requirements. It supports integration with Microsoft 365, Google Workspace, and on-premises systems, offering features like immutable storage, legal holds, and advanced full-text search. The platform scales effortlessly with unlimited storage options, reducing the need for on-premises hardware while ensuring long-term data retention policies are met.

MailStore Server is an on-premises email archiving solution that enables organizations to centrally store, manage, and retrieve emails from sources like Microsoft Exchange, Office 365, Gmail, and more than 50 other email systems. It supports compliance through features like automated retention policies, immutable WORM storage, audit-proof logging, and powerful e-discovery tools for legal holds and regulatory adherence. The software emphasizes fast full-text search across petabytes of data, making it suitable for long-term archiving and reducing primary email server loads.

Intradyn provides specialized email compliance software, including Justification Archive for secure, long-term email retention compliant with SEC 17a-4, FINRA, and other regulations, and Justification Supervision for automated surveillance of employee communications. The platform supports e-discovery, tamper-proof storage, and advanced search capabilities to help regulated organizations manage compliance risks efficiently. It offers both on-premises and cloud deployment options, focusing primarily on email journaling, archiving, and monitoring without disrupting mail servers.

ArcTitan by TitanHQ is a cloud-based email archiving and compliance solution that captures, indexes, and stores emails from platforms like Microsoft 365 and Google Workspace with unlimited storage capacity. It ensures regulatory compliance through features like eDiscovery, legal holds, audit trails, and rapid search capabilities for quick retrieval. Designed for businesses needing to meet standards such as GDPR, HIPAA, and FINRA, it provides immutable storage and automated retention policies to simplify data management and reduce legal risks.

Archive360 is a cloud-based archiving platform designed for email compliance, governance, and eDiscovery, supporting sources like Microsoft 365, Exchange, and Google Workspace. It provides secure, compliant storage with features like retention policies, WORM immutability, and advanced search capabilities to meet regulations such as SEC 17a-4, GDPR, and HIPAA. The solution excels in large-scale data migration from legacy systems like Veritas Enterprise Vault to cost-effective cloud storage.