Best Office 365 Alternative for Archiving

Everything in a single system built specifically for compliance and discovery

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Rated 4.9/5 - from over 500 reviews

data archiving solutions

KEY BENEFITS AT A GLANCE

Jatheon is an AI-enabled cloud archive with a modern interface and powerful search across all content sources.

Store all your communications data in a centralized archive

Fully customizable user roles

No hard limits on archive mailbox size

Advanced search across massive datasets in seconds

Easy retention, labeling, holds, and case management

24/7 tech support

Why teams choose Jatheon over Microsoft 365

FeatureJatheon CloudMicrosoft 365 (Office 365 + Purview)
Email archiving
Yes
Purpose-built archive designed for regulated retention and fast retrieval
Yes
Exchange Online Archiving
Mobile (SMS, iMessage, WhatsApp) archiving
Yes
Native capture for mobile and messaging channels
Partial
WhatsApp supported via connector/import; SMS and iMessage typically require third-party capture tools
Instant messaging (IM) archiving
Yes
Capture across Teams, Slack, Zoom Chat, and more
Partial
Microsoft Teams supported; other IM platforms require connectors/import
Social media archiving
Yes
Facebook, X, Instagram, LinkedIn, YouTube
Partial
Supported via connectors, not native capture
Website archiving
Yes
Limited
Typically requires third-party connector solutions
OneDrive integration
Yes
Yes
SharePoint integration
Yes
Yes
User roles and permissions
Fully customizable
70+ granular access levels designed for compliance workflows
Role-based
Permissions via Purview; powerful but less workflow-specific for archive teams
Outlook plugin
Yes
Not required
Managed at the service level
Native mobile apps (iOS & Android)
Yes
Yes
Export fees
No export fees
Full data ownership and portability
Advanced ediscovery scenarios may involve additional licensing or consumption-based costs
AI-powered ediscovery
Yes
AI-assisted search, tagging, and case workflows
Yes
Available with ediscovery Premium licensing
Retention policy control
Granular retention rules by group, jurisdiction, and data type
Strong retention capabilities, but policy models vary by workload
Search capability
High-speed and compliance-optimized; Boolean, wildcard, fuzzy, and proximity operators
Powerful search in Purview, but workflows span multiple admin tools
Conversation threading (context view)
Yes
Full conversation view with edit/delete indicators (where supported)
Limited
Conversation reconstruction may require additional processing
Redaction
Yes
Built-in redaction for compliance workflows
Available in Premium review workflows
Deployment
Cloud or on-premises — customer choice
Cloud-first platform
Migration process
Automated migration designed to minimize disruption and preserve data integrity
Varies — archive consolidation often requires migration projects or services
Support and availability
24/7 in-house support with onboarding assistance
Support level depends on the Microsoft support plan
UI and usability
Purpose-built, intuitive interface optimized for compliance teams
Multiple admin portals; powerful but more complex to navigate
Compliance and certifications
SOC 2, ISO 27001, HIPAA and GDPR-aligned (per platform capabilities)
Broad compliance portfolio across the Microsoft 365 ecosystem
Data ownership
Your data is your data — clear exportability
Data ownership retained by customer, but portability depends on tooling and licensing
Pricing structure
Transparent pricing — no archive tiers, no export fees
Layered licensing model with add-ons for advanced ediscovery

Switching is easier than you think

Office 365 migration is fully automated. We own the process end to end.

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TOP MISSING FEATURES

Why Jatheon is a stronger
alternative to Office 365

Industry-leading advanced search

Jatheon’s advanced search lets you create and execute complex searches by filtering emails matching different criteria, keywords, and phrases. Based on the latest search technology, it lets you run fast, repeatable, organization-wide investigation searches across huge volumes. Results can be filtered, saved, and exported for review or ediscovery, giving compliance teams confidence and precision during audits and investigations.

Advanced search without limitations

Advanced export

Jatheon’s export process is built for real-world investigations at scale. Whether you’re exporting 500K or several million emails, the system completes it without forcing you to break the task into artificial batches. Large exports are automatically generated as multiple manageable PST files. Microsoft 365 exports are structured around predefined package and PST size limits — an approach many users describe as cumbersome when dealing with high-volume, time-sensitive requests.

Advanced export

Fully customizable user roles

With Jatheon, you can fully customize roles and permission levels to protect sensitive data. The platform comes with three default roles: Admin, Compliance Officer, and End User, all of which you can customize. Plus, you can add new roles and define them based on departments, user groups, seniority levels, or any other criteria applicable to your organization and its unique needs.

Centralized archive for all your communication channels

Jatheon delivers true multi-channel communications archiving, capturing email, chat, collaboration tools, mobile messaging, social media, and files in one centralized, compliant archive. While Microsoft 365 provides strong retention for its native workloads like Exchange, Teams, OneDrive, and SharePoint, extending coverage to platforms such as Slack, Zoom, WhatsApp, and social media often requires connectors and third-party capture workflows. Jatheon gives you everything in a single platform.

Centralized archive for all your communication channels

Support for ediscovery and compliance

Jatheon’s comprehensive enterprise data archiving features help you browse through all business communication channels and retrieve data essential for ediscovery requests. You will minimize costs associated with FOIA requests and ensure full compliance with key regulations in your industry.

Powerful ediscovery capabilities

Seamless migration and no vendor lock-in

Migrating legacy archives into Microsoft 365 is often slow, incomplete, or costly. Jatheon provides fast, verified migration from more than 30 legacy systems,  without losing metadata or compliance context. Microsoft 365 customers retain data ownership, but data portability, advanced ediscovery, and large-scale exports may depend on licensing tiers and tooling. Jatheon removes export fees and simplifies data portability with no contract termination costs.

Seamless migration and no vendor lock-in

4.9 out of 5

4.8 out of 5

4.7 out of 5

10 out of 10

 91 out of 100

TESTIMONIALS

We’ve used Jatheon for years. It’s a great tool for retention of emails and expunge of records that are no longer needed. Any time we’ve had a problem, I usually get a response within an hour, if not immediately, and they are always able to help us.

System Administrator in Government

It’s reliable and fast. The export to PST, PDF, or single emails is a great feature and really helps with ediscovery. We use it to restore any lost or corrupted emails, It’s on a separate platform, so it’s not vulnerable to any MS Exchange or Windows attacks, malware, or viruses.

Director of Information Technology in Utilities

Jatheon provides a complete solution for archiving, compliance, and legal hold requests. Having been a customer for seven years, our firm can attest to the reliability and usability of the product. Jatheon support is fantastic. The search interface is simple and our end users have no problems using it. Very happy overall.

Director of Technology in Finance (Non-Banking)

Microsoft 365 worked for us for retention and ediscovery until our caseload grew and we started seeing performance issues — exports often required retrying or splitting. When we moved to Jatheon, we stopped thinking about limits, throttling, or how many cases were active. Our legal team can run complex searches simultaneously without slowing each other down. Large exports that used to require planning now feel routine.

IT Director in County Government

Office 365 audit logs only retain data for a limited period, and extending retention requires the right licensing, add-ons, and carefully configured policies. Managing that complexity became an administrative burden. With Jatheon, auditability is built directly into the archive itself. Retention is clearly defined, consistently enforced, and not dependent on layered licensing decisions.

CIO in Healthcare

More reasons for switching to Jatheon

Outlook plugin

Automated migration

of Microsoft 365 data

One unified, purpose-built

archive

No search or case limits

slowing you down

Fast, large exports

without throttling

Archive independent

of Microsoft licensing changes

No premium add-ons

just for long-term audit retention

Advanced search without complex query tuning

Immutable, WORM-compliant storage

Capture SMS, WhatsApp, social, and more

in one place

Frequently asked questions

Everything you need to know about the product and billing