Enterprise Email Migration & Data Recovery Solutions
Bypass ScanPST failures, convert locked Google Takeout archives, extract Thunderbird profiles, and restore orphaned OST files with zero cloud dependencies.
Active Migration Scenarios
Select your exact mailbox transition challenge to view architecture specs and step-by-step resolution.
Google Takeout MBOX to Outlook PST
The Bottleneck:
Google Takeout bundles gigabytes of Gmail into huge monolithic .mbox files without directory trees or MAPI folder indexes.
The Architecture Fix:
Extracts Takeout MBOX archives, decodes nested MIME headers, reconstructs Gmail label hierarchies, and writes clean Outlook PST archives.
- Retains Gmail Nested Labels
- Zero 2GB / 50GB file boundary crashes
- Direct PST, EML, PDF & MSG export
Mozilla Thunderbird to Outlook 2026
The Bottleneck:
Thunderbird stores messages in extensionless Unix MBOX files with MSF index pointers that Microsoft Outlook cannot parse natively.
The Architecture Fix:
Auto-detects active Thunderbird profile directories, reads raw mail stores directly, and exports into Unicode PST compatible with Outlook 2016-2026.
- Automatic Profile Directory Detection
- Inline PNG/JPEG image preservation
- 100% Offline workstation processing
Repair Corrupted 50GB+ Outlook PST
The Bottleneck:
Microsoft ScanPST.exe (Inbox Repair Tool) freezes, loops infinitely, or truncates mailbox data when PST files reach or exceed 50GB limits.
The Architecture Fix:
Low-level 64-bit B-tree parser bypasses MAPI locks, salvages uncorrupted blocks, restores damaged indexes, and auto-splits into healthy chunks.
- Bypasses ScanPST error 0x8004010F
- Automatic 5GB/10GB/20GB PST auto-split
- Recovers permanently deleted soft-deleted items
Open Windows PST on Mac Outlook
The Bottleneck:
New Mac Outlook on macOS Sonoma and Sequoia dropped native direct PST import, leaving cross-platform users locked out of historical archives.
The Architecture Fix:
Compiles as a native Apple Silicon ARM64 universal binary to parse Windows PST files and export directly to native Mac OLM, MBOX, and Apple Mail.
- Native Apple Silicon M1-M4 compilation
- Zero Rosetta 2 emulation overhead
- Preserves calendar meetings, tasks & contacts
Import Orphaned OST to Office 365
The Bottleneck:
Outlook disallows importing offline cache (.ost) files once an Exchange account or tenant has been decommissioned or dismounted.
The Architecture Fix:
Reconstructs orphaned OST binary trees without an active Exchange Server and streams mailboxes directly into Microsoft 365 using modern OAuth 2.0 PKCE.
- No on-prem Exchange Server needed
- Direct Microsoft 365 cloud streaming
- Local AES-256 encrypted memory handling
Enterprise Core Engine Specifications
All solutions leverage our two flagship offline conversion engines engineered for fault tolerance.
Prism PST Converter Tool
Specialized for Windows Outlook PST & offline OST databases. Rebuilds internal b-trees, recovers corrupted blocks, and exports to MBOX, EML, PDF, MSG, and Office 365.
Prism MBOX Converter Tool
Purpose-built for Google Takeout, Thunderbird, Apple Mail, and 30+ MBOX variants. Parses MIME headers and streams directly into 64-bit Unicode Outlook PST files.
Frequently Asked Architecture Questions
Q: Are these migration solutions cloud-hosted or executed locally on-premise?
Every Prism Migration utility runs 100% locally on your desktop or server. Zero email content, folder hierarchies, or authentication secrets are transmitted to external servers, satisfying strict enterprise compliance (GDPR, HIPAA, SOC 2).
Q: Which Microsoft Outlook versions are supported by these solutions?
All generated PST archives use standard 64-bit Unicode encoding compatible with Microsoft 365, Office 2024, 2021, 2019, 2016, and legacy Outlook 2013/2010 environments.
Q: Can I test these solutions before purchasing an enterprise license?
Yes. Both the Prism PST Converter and Prism MBOX Converter offer free evaluation downloads that scan your mail files, preview all mailbox folders, and export up to 25 items per directory with full attachment integrity.