7 MailStore Alternatives for Email Archiving and Compliance

Email archiving is no longer just a “nice to have” for IT teams. Organizations need searchable, tamper-resistant email records for compliance, litigation readiness, internal investigations, storage optimization, and cybersecurity. MailStore is a well-known option, especially for small and mid-sized businesses, but it is not always the best fit for every environment, budget, or regulatory requirement.

TLDR: If you need an alternative to MailStore, strong options include Microsoft Purview, Google Vault, Mimecast, Proofpoint, Barracuda, Jatheon, and ArcTitan. For example, a 250-person law firm using Microsoft 365 may reduce tool sprawl by choosing Microsoft Purview, while a healthcare provider may prefer Mimecast or Proofpoint for layered compliance and threat protection. According to industry estimates, organizations can spend 20% to 40% less time on eDiscovery when email archives are properly indexed and retention policies are automated.

What to Look for in a MailStore Alternative

Before comparing platforms, it helps to define what “better” means for your organization. Some companies want a simpler cloud archive. Others need advanced legal hold, granular retention policies, immutable storage, or supervision workflows for regulated industries.

• Compliance support: Look for features aligned with GDPR, HIPAA, FINRA, SEC, or other relevant rules.
• Search performance: Fast indexing and full-text search are essential during audits and legal requests.
• Retention management: Automated retention and deletion policies reduce manual work and risk.
• Deployment model: Choose between cloud, on-premises, hybrid, or appliance-based archiving.
• Security: Encryption, role-based access, audit logs, and tamper-proof storage should be standard.
• Integration: The best solution should fit your Microsoft 365, Google Workspace, or mail server environment.

1. Microsoft Purview

Microsoft Purview is one of the most practical MailStore alternatives for organizations already using Microsoft 365. It includes email retention, eDiscovery, audit capabilities, data loss prevention, and information governance tools within the Microsoft ecosystem.

The biggest advantage is integration. If your email lives in Exchange Online, Purview can manage retention and compliance without adding a separate archiving product. Legal teams can place mailboxes on hold, search across content, and export relevant records when needed.

Best for: Microsoft 365 organizations that want native compliance and eDiscovery features.

Potential drawback: Licensing can be confusing, and advanced features may require higher-tier Microsoft 365 plans.

2. Google Vault

Google Vault is the natural alternative for businesses using Google Workspace. It supports retention, legal holds, search, and export across Gmail, Google Drive, Chat, Meet recordings, and other Workspace data sources.

For smaller teams, Vault is appealing because it feels familiar and does not require complex infrastructure. Admins can create retention rules, preserve user data even after accounts are suspended, and respond to legal or compliance requests from a central interface.

Best for: Google Workspace users that need a straightforward, cloud-native archive.

Potential drawback: It is tightly tied to Google’s ecosystem, so it may not be ideal for mixed or complex email environments.

3. Mimecast Cloud Archive

Mimecast Cloud Archive is a robust enterprise-grade email archiving platform with strong compliance, continuity, and security capabilities. It is especially popular among organizations that want archiving combined with email security, phishing protection, and resilience.

Mimecast provides fast search, litigation hold, user self-service access, and long-term retention. One standout benefit is email continuity: if your primary email service goes down, users can continue accessing and sending messages through Mimecast.

Best for: Mid-sized and enterprise organizations that want archiving plus advanced email security.

Potential drawback: It may be more feature-rich than necessary for small businesses with basic archiving needs.

4. Proofpoint Enterprise Archive

Proofpoint Enterprise Archive is built for organizations with serious compliance, legal discovery, and information governance requirements. It offers intelligent search, supervision, legal hold, retention management, and compliance workflows designed for heavily regulated industries.

Proofpoint is often used by financial services, healthcare, government, and large enterprises. Its analytics and classification features help teams find relevant data quickly, which is crucial when responding to litigation or regulatory investigations.

Best for: Highly regulated organizations that need advanced governance and discovery tools.

Potential drawback: Pricing and implementation may be better suited to larger businesses than small teams.

5. Barracuda Message Archiver

Barracuda Message Archiver is a practical choice for companies that want reliable archiving, easy search, and policy-based retention without excessive complexity. Barracuda offers both cloud and appliance-style options, making it attractive for organizations with specific deployment preferences.

It supports Microsoft Exchange, Microsoft 365, and other common email platforms. Users can access archived messages, while administrators manage retention, legal hold, and audit trails. Barracuda is also known for a broader security portfolio, including email protection and backup products.

Best for: SMBs and mid-market organizations looking for dependable archiving with flexible deployment.

Potential drawback: Some advanced eDiscovery workflows may not be as deep as those in enterprise-focused platforms.

6. Jatheon Archiving Suite

Jatheon provides email archiving solutions with cloud, on-premises, and hybrid deployment options. It is a strong MailStore alternative for organizations that want control over where data is stored while still benefiting from modern compliance features.

Jatheon supports retention policies, legal holds, audit trails, role-based access, and advanced search. It can archive email as well as other communication channels, depending on the selected product. For companies with strict data residency rules, the deployment flexibility can be a major advantage.

Best for: Organizations that need flexible deployment and strong compliance controls.

Potential drawback: The best fit depends on your infrastructure strategy, so careful planning is important.

7. ArcTitan

ArcTitan is a cloud-based email archiving platform designed for simplicity, speed, and affordability. It works with Microsoft 365, Google Workspace, and other mail systems, making it a flexible alternative for small and mid-sized businesses.

ArcTitan offers fast search, automated retention, encryption, legal hold, and secure access to archived mail. It is often appreciated by IT teams that want an archive that can be deployed quickly without adding unnecessary administrative overhead.

Best for: SMBs that want cloud email archiving with easy setup and predictable management.

Potential drawback: Very large enterprises may need deeper governance or supervision features than ArcTitan provides.

How to Choose the Right Alternative

The best MailStore alternative depends on your email platform, compliance obligations, company size, and IT resources. A 30-user consulting firm may prioritize low cost and fast deployment, while a 5,000-user financial institution may require supervisory review, immutable storage, advanced case management, and detailed audit reporting.

If you are already standardized on Microsoft 365, start by evaluating Microsoft Purview. If your organization runs on Google Workspace, Google Vault may be the most efficient first choice. If you need stronger security and compliance layers, Mimecast or Proofpoint may be worth the investment. For more flexible or SMB-friendly deployments, Barracuda, Jatheon, and ArcTitan are all strong contenders.

Final Thoughts

MailStore remains a capable email archiving solution, but the market offers many alternatives tailored to different needs. Some tools focus on native cloud ecosystems, while others specialize in enterprise compliance, legal discovery, continuity, or flexible deployment.

The right approach is to match the platform to your risk profile. Choose a solution that makes email easy to find, difficult to tamper with, simple to manage, and aligned with your regulatory obligations. A good archive should not just store messages; it should help your organization respond faster, prove compliance, and reduce uncertainty when records matter most.