MailStore vs ArcTitan Comparison: Reviews, Features, Pricing & Alternatives in 2026

MailStore helps you take full control of your company's email data by creating 1:1 copies of all emails in a central archive. You can secure large volumes of data permanently while meeting complex legal retention requirements and GDPR obligations. By offloading emails from your active server to the archive, you significantly reduce the workload on your IT infrastructure and eliminate the need for unreliable PST files.

You can empower your team with lightning-fast full-text searches for emails and attachments, accessible directly through Outlook or a web browser. Whether you use Microsoft 365, Google Workspace, or an on-premise Exchange server, the software integrates into your existing environment. It is specifically designed for small and medium-sized businesses looking for a reliable way to prevent data loss and simplify backup processes.

ArcTitan is a cloud-based email archiving solution designed to help you manage and secure your organization's entire communication history. It automatically captures every email sent and received, storing them in a tamper-proof, encrypted environment that meets strict regulatory requirements like GDPR and HIPAA. You can eliminate the stress of data loss or PST file corruption by moving your long-term storage to a scalable cloud infrastructure.

The platform allows you to search through millions of emails in seconds, making it easy to handle internal audits or legal discovery requests. You can integrate it directly with Office 365 and other mail servers to provide your team with instant access to their archived messages without slowing down your primary mail server. It is built for businesses of all sizes that need a reliable way to preserve corporate memory and maintain legal readiness.

• Centralized Archiving Copy all existing and future emails into a single, secure archive to prevent accidental or intentional data deletion.
• Fast Full-Text Search Find any email or attachment in seconds using an intuitive search interface that works directly within your Outlook ribbon.
• Legal Compliance Meet regulatory requirements like GDPR and HIPAA by maintaining tamper-proof email records with sophisticated auditing and retention policies.
• Storage Optimization Reduce your mail server storage requirements by up to 70% using advanced de-duplication and compression technologies.
• Self-Service Access Give your team the ability to restore their own deleted emails without ever needing to contact the IT helpdesk.
• Flexible Deployment Choose between an on-premise installation for total data sovereignty or a managed service through a certified provider.

• Lightning-Fast Search. Search through millions of archived emails and attachments in seconds to find exactly what you need instantly.
• Office 365 Integration. Enhance your Office 365 experience by adding a robust, independent layer of archiving and discovery for your team.
• Tamper-Proof Encryption. Secure your data with top-tier encryption and audit logs that ensure your archived emails remain unchanged and authentic.
• Automated Data Retention. Set custom retention policies to automatically keep or delete emails based on your specific legal and business requirements.
• E-Discovery Tools. Simplify legal requests by quickly identifying, putting on hold, and exporting relevant communications for your legal team.
• Storage Optimization. Reduce the load on your mail server by offloading old messages to the cloud while maintaining user access.