OLM to PST Converter for Mac & Windows (2026 Enterprise Edition) — Technical Specs

System requirements, supported formats and trial limit for OLM to PST Converter for Mac & Windows (2026 Enterprise Edition).

System Hardware & OS Support Matrix

Operating System macOS Sequoia (15), Sonoma (14), Ventura (13), Monterey (12) & Windows 11, 10, 8.1, 7 (64-bit)

Processor / CPU Intel Core i5 / AMD Ryzen 5 or Apple Silicon M1, M2, M3, M4

Memory (RAM) 8 GB RAM minimum (16 GB recommended for 50GB+ OLM files)

Disk Installation Space 500 MB free storage for application; additional space required for target exports

Supported Source Archives Mac Outlook Archive (.olm) from Outlook 2011, 2016, 2019, 2021, and Microsoft 365 for Mac

Profile Auto-Discovery 1-Click auto-detection of macOS Outlook identity profiles with full sandboxing compliance

MIME & Manifest Decoding Decodes internal message.xml manifests, custom categories, read flags, and attachments

Directory Hierarchy Reconstructs full nested folder tree structures including user archives and system folders

Mail Container Formats Windows Outlook PST (Unicode 64-bit), MBOX (RFC 4155), EML (RFC 822), MSG, EMLX

Document & Legal Formats Adobe PDF/A (ISO 19005-1 with Bates stamping), HTML5, MHTML, RTF, DOC, TXT, JSON, CSV

Address Book Targets vCard 4.0 (.vcf) with photos, notes, multiple phone numbers, and company titles

Calendar & Organizer Targets iCalendar (.ics) with recurrence patterns, reminders, attendees, and tasks

PST Output Splitting Auto-splits large output PST files at 2 GB, 5 GB, 10 GB, 20 GB, or custom thresholds

Multi-Threading Model Asynchronous producer-consumer worker pipeline scaling across all CPU cores

Interrupted Job Recovery ACID-compliant SQLite checkpoint ledger for instant pause and duplicate-free resume

Data Hygiene Suite 7 filter panels: date range, sender/recipient domain, subject regex, attachment size, deduplication

Data Privacy Boundary Processing runs on your computer. Data goes only to the mail provider or cloud destination you choose.

OLM

PST MBOX EML MSG PDF HTML OFFICE365 GMAIL VCF ICS

50 items per folder

The free trial exports up to 50 items per folder so you can verify conversion fidelity before purchasing.

Test performance on your hardware with a 50-item preview export limit.