Frequently Asked Questions

Yes. Batch convert MSG to PDF with full headers, embedded attachments, and optional Bates stamping.

The Resume Center records processed items in SQLite. Relaunching resumes the job without duplicate exports.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs with native performance.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 CSV logs.

Yes. Direct cloud ingestion via OAuth 2.0 or Admin SDK credentials is fully supported.

Yes. The software includes a dedicated Compound File Binary parser that reads MSG files directly from disk with zero Outlook or MAPI dependency.

Yes. It merges bulk MSG files into an organized Unicode PST file with custom folder structures for easy import into Outlook.

Yes. All file attachments, nested MSG objects, and inline images are extracted and preserved with 100% data fidelity.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. The generated EML files follow standard RFC 822 specifications and open seamlessly in Thunderbird, Apple Mail, Windows Mail, and any webmail client.

Yes. All MIME headers, transport routing hops, DKIM/SPF signatures, and file attachments are preserved with 100% fidelity.

No. The software reads PST files directly off disk without needing Outlook installed.

Yes. The generated HTML and MHTML files open in Google Chrome, Apple Safari, Microsoft Edge, Mozilla Firefox, and mobile browsers without any email client.

In HTML mode, attachments are saved in an accompanying '_attachments' folder and hyperlinked directly within the email web page.

No. The software decodes PST files directly off disk without needing Outlook installed.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

The tool includes automatic socket keep-alive and retry logic. If interrupted, the Resume Center picks up from the exact checkpoint.

Yes. All folder structures (Inbox, Sent, Subfolders) are created on the IMAP server matching the original PST layout.

Yes. It works with any standard IMAP4rev1 compliant server including Zimbra, Roundcube, Dovecot, Postfix, and Plesk.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. Headless CLI mode allows running migrations via JSON config files with RFC 4180 audit logs.

Yes. The software connects directly to the cPanel IMAP server over SSL/TLS (Port 993) and uploads emails with complete folder structures.

Yes. IMAP Batch CSV Mode lets you prepare a CSV of source PST files and destination IMAP credentials for bulk migration.

Yes. The software auto-detects Thunderbird default profile directories on both Windows and macOS, eliminating manual file path searching.

No. The software decodes PST and OST files directly from disk without needing Outlook installed.

Yes. Contacts are converted into Thunderbird address books (abook.sqlite) and appointments are added to Thunderbird Calendars.

Yes. Complete folder hierarchies (Inbox, Sent Items, Archive, Custom Subfolders) appear inside Thunderbird Local Folders.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. It works with both PST and offline OST files from any version of Outlook.

Yes. It supports both live Zimbra server connections and offline TGZ archive extractions.

Yes. The tool features direct OAuth 2.0 cloud streaming from Zimbra to Exchange Online mailboxes.

Yes — the tool connects via standard IMAP/SSL which is available on both Zimbra Open-Source Edition (FOSS) and Zimbra Network Edition (commercial). No Zimbra admin CLI access is required.

Shared mailboxes can be backed up using delegated IMAP credentials. Distribution lists are Zimbra LDAP objects and aren't part of IMAP backup, but individual member mailboxes can be exported.

Use the Batch CSV Import feature — prepare a CSV with all account credentials and the tool will sequentially connect and export each mailbox. The multi-threaded streaming engine processes 4 concurrent folders per account for maximum throughput.

Yes. Simply point the tool to the extracted cPanel /home/username/mail directory and it will convert all user mailboxes to PST.

Yes. Direct cloud ingestion via OAuth 2.0 or Admin SDK credentials is fully supported.

The Resume Center records every converted email in SQLite. Resuming skips already-migrated messages automatically.

Yes. Compiled as a native Universal Binary, it runs on M1, M2, M3, and M4 Macs with native ARM performance.

Yes. You can split output PST files at 2GB, 5GB, or 10GB limits for safe Outlook imports.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 audit logs.

Maildir is a Linux mail storage format where each email is stored as an individual file inside cur, new, or tmp directories. This tool parses the entire directory structure and compiles it into clean PST or cloud formats.

Yes. The software reads Maildir info flags (e.g., :2,S for Seen, :2,F for Flagged) and maps them into Outlook read/unread flags.

Yes. The tool reads PST files directly from disk using a built-in 64-bit parser. Outlook, Exchange, and MAPI are not involved. Works on a clean Windows or Mac install with no Office dependency.

Everything comes across. Folder hierarchy, To/From/CC/BCC, dates, read/unread flags, inline images, and file attachments are preserved in every supported output format.

We have tested up to 100GB PST files. The engine uses a streaming iterator — it never loads the full mailbox into RAM. The Resume Center checkpoints every message, so a crash does not mean starting over.

Yes. Authenticate once with a super-admin account via Admin SDK or a P12 service account file. The User Mapping dialog assigns each PST to its destination. No per-user OAuth popup needed.

Two options: IMAP Batch CSV Mode — load a CSV with email addresses and credentials. Or CLI Mode — run the JAR with a JSON config file. RFC 4180 CSV audit log generated automatically.

Emails, Contacts, Calendar events, and Tasks are all supported when migrating to Gmail or Office 365. Most PST tools skip Contacts and Calendar — we do not.

Relaunch the app. The Resume Center shows the interrupted job with exact progress. Click Resume — the engine skips already-migrated messages both locally and server-side.

Yes. The macOS build is a Universal Binary — native ARM for Apple Silicon (M1 through M4) and native x86-64 for Intel Macs. No Rosetta 2. Tested on macOS Sonoma and Sequoia.

Yes. Google Takeout MBOX files are fully supported. The tool extracts all emails and attachments and packages them into a clean Unicode PST file.

Yes. It automatically detects and parses MBOX files generated by Apple Mail, Mozilla Thunderbird, Postbox, Eudora, and Opera Mail.

No. The software generates standalone Unicode PST files directly using a built-in 64-bit encoder with zero Outlook dependency.

Yes. Connect via OAuth 2.0 or Admin SDK to upload MBOX emails directly into cloud user accounts with full folder structures intact.

The streaming engine processes emails in a memory-safe iterator pattern, effortlessly handling 50GB to 100GB+ MBOX files without crashing.

Every successfully exported email is recorded in a local SQLite database. If a job is stopped, resuming it skips already-migrated emails automatically.

Yes. A native Universal Binary build runs on Apple Silicon M1, M2, M3, and M4 Macs with native ARM performance.

Yes. Headless CLI mode and IMAP CSV batching allow automated script execution with RFC 4180 audit logs.

Google Takeout exports Gmail in standard MBOX format, whereas Microsoft Outlook only recognizes proprietary PST or OST files. Our tool bridges this gap by converting the Takeout MBOX into a clean, Outlook-compatible PST file.

Yes. The converter maps all Gmail labels directly into corresponding Outlook folder hierarchies (e.g. Inbox, Sent, Archive, and all user-created labels).

Yes. The tool features an automated PST Splitter that safely breaks monolithic 50GB+ Takeout files into smaller 10GB, 20GB, or 25GB PST files to prevent Outlook corruptions.

No. The conversion runs 100% standalone. You only need Outlook when you wish to open the final PST file.

Yes. The generated MBOX files can be imported directly into Apple Mail via File > Import Mailboxes.

No. The software parses PST and OST files directly off disk without needing Outlook installed.

Yes. All attachments, inline images, HTML styling, and original RFC headers remain 100% intact.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 audit logs.

The migrator features automatic resume capability. It remembers previously transferred message IDs and continues where it left off without duplicating emails.

Yes. The tool uses modern Google OAuth 2.0 PKCE authentication. You log in directly on Google's official browser page; the application never sees or stores your password.

Yes. All labels from the Takeout archive are automatically created and assigned to their respective emails in the new Gmail account.

Google Takeout is designed strictly as an export service. Google does not provide an upload or import feature in Gmail settings for Takeout files. Our tool utilizes the Google Mail API over OAuth 2.0 to upload messages directly.

Prism PST to PDF Converter includes 4 specialized layout engines: (1) Forensic Legal eDiscovery: Generates ISO 19005-1 PDF/A with sequential Bates stamping and full RFC-822 headers; (2) Executive Summary: Clean corporate layout with threaded discussion cards and summary metadata; (3) Print-Optimized: High-contrast, page-break-isolated format for physical deposition binders; (4) Interactive Portfolio: Packages raw attachments directly inside the PDF container with 1-click launch anchors.

The Bates Stamping engine allows litigators and paralegals to configure custom alphanumeric prefixes (e.g., 'CONFIDENTIAL-000001'), starting digits, suffix tags, font family, color, and positional coordinates across 6 margin locations (Top-Left, Top-Center, Top-Right, Bottom-Left, Bottom-Center, Bottom-Right).

Yes. You have two attachment modes: (1) Embed native attachment files into the PDF's internal attachment tray (PDF Portfolio format), or (2) Append supported attachment types (DOCX, XLSX, PNG, JPG, TXT) as consecutive rendered pages directly following the parent email body.

Yes. The tool strictly outputs certified ISO 19005-1 (PDF/A-1b) compliant documents with 100% embedded fonts, RGB/CMYK standardized color profiles, and XML-based XMP metadata required by federal and international courts.

No. Prism PST to PDF Converter is completely standalone. It parses raw MAPI binary data stores directly from disk and utilizes an embedded PDF rendering engine—eliminating the need for Outlook, Adobe Acrobat, or third-party virtual print drivers.

Yes. The low-level binary parser handles password-protected, compressible-encrypted, and high-encryption Outlook PST/OST archives without requiring password entry or Outlook profile configuration.

Yes. Legal & Enterprise licenses include the headless CLI binary (pst2pdf --config job.json --output /destination/), supporting automated eDiscovery pipelines, scheduled overnight cron jobs, and batch server scripts.

Yes. The macOS version is compiled as a Universal Binary with native ARM64 architecture, delivering up to 3x faster conversion throughput compared to legacy Intel-based tools running under Rosetta 2.

Microsoft 365's native retention policies do not protect against permanent accidental deletions, malicious admin actions, or ransomware. An offline PST backup provides complete business continuity.

Yes. You can target primary mailboxes, shared departmental mailboxes, and In-Place Online Archives directly.

Yes. Incremental backup mode only downloads new emails, contacts, or calendar events received since the last backup run.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. Headless CLI mode allows running scheduled cron backups via JSON configuration files with RFC 4180 audit logs.

The Resume Center logs every converted file in SQLite. Resuming skips already-migrated files automatically.

No. The multi-threaded engine can process batches of 500,000+ EML files smoothly without RAM exhaustion.

Yes. We provide native ARM binaries for M1, M2, M3, and M4 Apple Silicon Macs on macOS Sonoma & Sequoia.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 audit logs.

Yes. The software can batch merge hundreds of thousands of individual EML files into a single organized Unicode PST file with complete folder structures.

Yes. All attachments, embedded images, HTML styling, and original RFC 822 transport headers remain 100% intact.

Yes. You can batch convert EML files to PDF with embedded attachments, headers, and optional page numbering.

Yes. Direct cloud upload via modern OAuth 2.0 or Admin SDK credentials is fully supported without desktop Outlook.

No. By using Google Cloud Service Account Domain-Wide Delegation, you can ingest PST archives into any user mailbox with zero password or MFA prompts.

Outlook folder hierarchies (e.g. Inbox > Projects > 2026) are automatically converted into nested, organized Gmail labels.

Yes. Outlook Contacts are migrated directly into Google Contacts, and Calendar appointments are scheduled in Google Calendar.

Unlike GWMMO, Prism does not require Outlook installed, handles 50GB+ files without crashing, runs domain-wide from one server, and provides SHA-256 deduplication.

The engine includes intelligent exponential backoff algorithms that automatically throttle and retry without dropping messages.

The Resume Center records each uploaded message in SQLite. Relaunching resumes the upload from the exact checkpoint.

Yes. Native Universal Binaries run on M1, M2, M3, and M4 Apple Silicon Macs as well as Windows.

Yes. Headless CLI mode allows running migrations via JSON configuration files with RFC 4180 audit logs.

Google Takeout takes 24-48 hours to generate download links, frequently fails on large mailboxes, and outputs raw MBOX files. Prism downloads mailboxes instantly directly to PST or PDF.

No. The tool uses modern OAuth 2.0 PKCE authentication. You sign in directly on Google's official login page in your browser.

Yes. Using Google Cloud Service Account Domain-Wide Delegation, you can back up every domain account from a central server.

Yes. Incremental backup mode scans for new emails received since the last backup and skips already-downloaded messages.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. You can filter by specific file extensions like .pdf, .docx, .xlsx, or .zip to rip only the file types you need.

Yes. You can automatically sort files into subfolders by File Extension, Date (YYYY-MM), Sender Email Address, or original PST folder structure.

No. The software extracts attachments directly from the PST binary stream with zero Outlook requirement.

Yes. It outputs a comprehensive CSV manifest listing every extracted attachment alongside the original email Subject, Sender, Date, and Message-ID.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

No. The software streams data directly from Microsoft 365 cloud servers to Google Workspace cloud servers without writing large files to local disk.

No. Using Microsoft 365 Admin Impersonation and Google Service Account Delegation, migrations run domain-wide with zero user password exposure.

Yes. Outlook Contacts become Google Contacts, and Outlook Calendar appointments are scheduled in Google Calendar.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. The software merges thousands of individual ICS event files into an organized Outlook Calendar folder within a new PST file.

Yes. Full RFC 5545 recurrence patterns (daily, weekly, monthly, annual, custom intervals) and exception dates are retained without schedule shifts.

Yes. It extracts all calendar fields (Subject, Start Date/Time, End Date/Time, Location, Organizer, Attendees, Description) into an RFC 4180 compliant CSV.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. You can specify any custom port and toggle explicit SSL or STARTTLS protocols.

Yes. The tool features direct OAuth 2.0 cloud upload into Microsoft 365 and Google Workspace mailboxes.

Any RFC 3501-compliant IMAP server — including Dovecot, Postfix, Courier, Cyrus, Kerio Connect, Zimbra, hMailServer, Exchange (IMAP mode), Rackspace, FastMail, and custom deployments.

The tool supports incremental backups using date range filters. Run it weekly or monthly, setting the start date to your last backup date, and only new emails will be downloaded — avoiding duplicates.

The checkpoint resumption engine saves progress at the folder and message level. If a network interruption occurs, simply restart the tool — it picks up exactly where it left off without re-downloading completed items.

Yes. Full Unicode UTF-8 character encoding is preserved across all headers and message bodies.

Yes. The tool exports directly to native Unicode PST files compatible with Outlook 2026/2021.

Yes — full UTF-8 Unicode support ensures Cyrillic, Latin, and mixed-script folder names are preserved exactly as they appear in your Yandex Mail account.

Log into Yandex ID (id.yandex.com), navigate to Security > App Passwords, and create a new password for 'Mail client'. Use this generated password in the tool instead of your main Yandex password.

Yes — add multiple Yandex accounts to the batch queue. Each account will be processed sequentially with its own App Password and output directory.

EMLX is Apple Mail's proprietary email format. It contains an XML property list trailer at the bottom that Windows Outlook cannot understand. This tool strips the Apple trailer and converts it to clean PST or EML.

Yes. Apple Mail often stores large attachments in separate .emlxpart files. The engine identifies and re-binds them into the main message automatically.

Yes. It compiles thousands of EMLX files into a single organized Unicode PST file ready for Outlook on Windows.

Yes. Direct cloud upload via modern OAuth 2.0 or Admin SDK credentials is fully supported.

The Resume Center logs every converted file in SQLite. Resuming skips already-migrated files automatically.

Yes. It is compiled as a Universal Binary with native ARM code for Apple Silicon M1, M2, M3, and M4 Macs.

Yes. The software runs on both Windows 11/10 and macOS with identical feature parity.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 audit logs.

Yes. All attachments (PDFs, DOCX, ZIPs, photos) and inline graphics are preserved in their original format.

No. The software uses secure Yahoo App-Specific Passwords, so your main master password is never shared or stored.

Yes. The software exports directly to Unicode PST files compatible with Outlook 2026, 2021, 2019, 2016, and Microsoft 365.

Yes. Log into your Yahoo account, go to Account Security, and generate an App Password specifically for this tool. This bypasses Yahoo's 2FA requirement while keeping your main password secure.

Yes — both Yahoo Mail Free, Yahoo Business Mail (Verizon), and AT&T Yahoo accounts are supported via standard IMAP/SSL connection on port 993.

Yes. Email Log mode extracts To, From, CC, BCC, Dates, Subject, Attachment names, and Message-IDs into a CSV spreadsheet.

Yes. The deduplication filter identifies and skips duplicate contacts based on matching email addresses or phone numbers.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. Headless CLI mode allows running extractions via JSON config files with RFC 4180 CSV logs.

Yes. The software reads Outlook PST contacts directly from binary b-tree structures with zero Outlook dependency.

Over 40 fields including Full Name, Job Title, Company, multiple Email addresses, Phone numbers, Physical Addresses, Notes, and Categories.

Yes. Pre-configured export templates format headers specifically for 1-click import into Salesforce, HubSpot, Google Contacts, and Zoho.

No. The software uses modern Google OAuth 2.0 PKCE authorization, fully compliant with Google security policies.

Yes. Use the Batch CSV mode to queue multiple user accounts for unattended overnight transfer.

IMAP folders are automatically mapped to Gmail Labels. Nested IMAP folders become nested Gmail labels (e.g., IMAP folder 'Projects/2026/Q3' becomes Gmail label 'Projects/2026/Q3'). Inbox, Sent, and Drafts map to their Gmail equivalents.

Yes — the tool implements adaptive rate limiting that respects Gmail API quotas. For large migrations, it automatically throttles upload speed and retries on 429 (rate limit) responses without losing progress.

Yes. Run sequential migration jobs — each connecting to a different source IMAP server — and all emails will be imported into the same target Gmail account with distinct labels per source.

Yes. The forensic scanner reconstructs mailbox items directly from binary sectors without relying on damaged OST header pointers.

Yes. All attachments, inline images, HTML styling, and RFC metadata (To, From, CC, BCC, Sent/Received timestamps) are restored completely.

Yes. It generates fresh, spec-compliant Unicode PST files that can be imported into Outlook 2024, 2021, 2019, 2016, or 2013 without errors.

Yes. You can restore recovered mailboxes straight to Microsoft 365, Google Workspace, Gmail, or IMAP webmail accounts.

The Resume Center records each salvaged item in SQLite. When you relaunch, it resumes from the exact interruption point.

No. It easily handles 50GB, 80GB, and 100GB+ OST archives without memory overflow.

Yes. Native ARM binaries run natively on M1, M2, M3, and M4 Apple Silicon chips as well as Intel Macs.

Yes. Full CLI mode with JSON configuration and CSV audit trails is built right in.

Yes. The Mac build is a native ARM64 Universal Binary tested on macOS Sequoia and Sonoma.

Yes. The Windows version converts iCloud mailboxes directly into native Outlook PST files.

No. Keep 2FA enabled for security. Generate an App-Specific Password from appleid.apple.com under Security > App-Specific Passwords. Use that generated password in the tool instead of your main Apple ID password.

Each iCloud account must be backed up individually using its own App-Specific Password. Add multiple accounts to the batch queue and the tool will process them sequentially.

Yes — the macOS build is a Universal Binary compiled for both Intel x86_64 and ARM64 Apple Silicon. No Rosetta 2 translation layer is used on M-series chips, delivering native ARM performance.

Yes. Simply generate an App-Specific Password in your AOL Security Settings and use it to log in.

Yes. The tool generates standard Unicode PST files that can be opened in any version of Outlook.

Speed depends on your internet connection and AOL server response times. On average, a 10GB mailbox with 15,000 emails takes approximately 60-90 minutes over a stable broadband connection. The multi-threaded streaming engine runs 4 concurrent download threads.

Absolutely. Select any local, external, or network-mapped drive as the output destination. The tool writes directly to the chosen path — no intermediate temp files that consume your system drive space.

Yes — 100%. All file attachments (PDF, DOCX, XLSX, ZIP, images) and inline embedded images are preserved in their original binary format across every supported output type including PST, EML, MBOX, and PDF.

No. The engine streams messages directly from the source IMAP server into Office 365 in RAM with zero disk buffering.

Yes. Uses Microsoft Graph OAuth 2.0 PKCE authentication compliant with modern security defaults.

Microsoft's native IMAP migration endpoint has strict concurrency limits and no checkpoint resumption. This tool handles Dovecot socket timeouts, implements per-mailbox byte-level resumption, and processes 6 parallel threads — completing in hours what Microsoft's tool takes days to finish.

No. The tool uses modern OAuth 2.0 PKCE authentication and only requires Exchange Administrator or Application Impersonation rights for the target mailboxes. No Global Admin or Compliance Admin privileges needed.

Shared mailboxes are supported — connect using the shared mailbox IMAP credentials. Distribution lists are Exchange-level objects and aren't part of IMAP migration, but you can migrate individual member mailboxes.

Yes. Set the file extension filter to "*.pdf" and specify a sender or date range to download only matching invoices.

No. The software performs read-only downloads, leaving your server emails 100% untouched.

Yes. Use the File Type Filter to specify which extensions to extract — for example, only PDF and DOCX files, or only images (JPG, PNG). You can also set a minimum file size threshold to skip tiny inline signature images.

Yes — extracted files retain their original filenames, creation dates, and MIME type metadata. Files are organized into subfolders by sender or date for easy navigation.

Absolutely. After connecting to the IMAP server, you can select individual folders (Inbox, Sent, specific project folders) from the mailbox tree. Only selected folders are scanned for attachments.

The Resume Center saves every item state in a local SQLite database. Relaunching the tool lets you pick up where you left off without generating duplicates.

No. The streaming engine has been tested with 50GB to 100GB+ OST archives without memory leaks or crashes.

Yes. We offer a native Universal Binary macOS build optimized for Apple Silicon (M1/M2/M3/M4) and Intel chips on macOS Sonoma and Sequoia.

Yes. Headless CLI mode allows running conversions via JSON config files with automated RFC 4180 CSV logging.

Yes. The software reads OST files as standalone local databases. It does not require active connection to Microsoft Exchange, Active Directory, or Outlook profiles.

The engine scans the raw b-tree structure of damaged OST files, bypassing corrupted header pointers to salvage intact emails, attachments, and folder trees.

Yes. You can authenticate directly via OAuth 2.0 or use Super Admin credentials (Admin SDK / Microsoft Graph) to ingest OST archives into tenant mailboxes without manual user intervention.

Yes. Contacts, Calendar appointments, and Tasks are fully extracted and can be converted to PST, vCard, ICS, CSV, or synced straight to cloud accounts.

Yes. The tool fully supports all Zoho Workplace custom domain accounts via IMAP.

Yes. On subsequent backups, the tool detects and skips existing emails to save time and bandwidth.

Yes — enable IMAP access in Zoho Mail Settings > Mail Accounts > IMAP. Then generate an App-Specific Password from Zoho Account Security if you have 2FA enabled.

Yes — use the Batch CSV Import with each user's email and App Password. The tool will process all accounts sequentially, exporting each to its own output directory.

PST (for Outlook import), EML (individual email files), MBOX (for Thunderbird/Apple Mail), PDF/A (for legal archival), HTML (for web viewing), CSV (for spreadsheet analysis), and direct cloud upload to Office 365 or Gmail.

Yes. You can target primary user inboxes, departmental shared mailboxes, or In-Place Online Archives directly.

No. The software bypasses AzCopy completely, streaming PST data directly into Microsoft 365 via modern Microsoft Graph APIs and EWS.

Yes. Emails, full folder trees, Contacts, Calendar schedules, and Tasks are all migrated directly into Microsoft 365.

Yes. Global Admin impersonation allows domain-wide migration without needing individual employee credentials or MFA prompts.

The engine monitors Microsoft Graph 429 and 503 responses, adhering to Retry-After headers with exponential backoff.

The Resume Center records each uploaded message in SQLite. Relaunching resumes the upload from the exact checkpoint.

Yes. Native ARM binaries run on Apple Silicon M1, M2, M3, and M4 Macs as well as Windows.

Yes. Headless CLI mode allows running migrations via JSON configuration files with RFC 4180 audit logs.

No. OLM is exclusive to Mac Outlook. Windows Outlook only opens PST files. This tool converts OLM to a 100% compatible Windows Unicode PST file.

Yes. Contacts, Calendar appointments, Tasks, and Notes are fully extracted and mapped into standard PST folders or synced to cloud targets.

Yes. Connect via OAuth 2.0 or Admin SDK credentials to ingest OLM mailboxes directly into cloud inboxes without intermediate files.

The streaming engine handles 50GB to 100GB+ OLM archives with zero memory bottlenecks or crashes.

The Resume Center records every converted email in SQLite. If stopped, restarting the tool resumes from the exact checkpoint without duplicates.

Yes. Compiled as a native Universal Binary, it runs natively on M1, M2, M3, and M4 Macs with native ARM performance.

Yes. You can automatically split large output PST files at 2GB, 5GB, or 10GB limits.

Yes. Headless CLI mode allows running conversions via JSON config files with RFC 4180 CSV logs.

No. You only need the individual email address and password for each webmail user.

Yes. It works transparently with any webmail interface running over IMAP.

The tool connects via standard IMAP/SSL — so it works with Roundcube, Horde, SquirrelMail, and any webmail frontend running on a cPanel IMAP backend (typically Dovecot or Courier).

Yes. Use the Batch CSV Import feature — prepare a CSV with email addresses and passwords, and the tool will sequentially connect and backup each account without manual intervention.

The tool respects IMAP server concurrency limits. It auto-detects Dovecot's maxuserconnections setting and throttles parallel streams accordingly to prevent socket disconnections.

Yes. The incremental sync engine checks destination messages and transfers only new emails received during DNS propagation.

Yes. It works transparently between any two RFC-compliant IMAP servers regardless of hosting platform.

Yes — the tool supports cross-platform IMAP migration between any combination of Dovecot, Postfix, Exchange IMAP, Courier, Zimbra, Kerio, and other RFC 3501-compliant servers.

Yes — IMAP flags including \Seen (read/unread), \Flagged (starred), \Answered, and \Draft are mapped and preserved during server-to-server migration.

Yes — both implicit SSL/TLS (port 993) and explicit STARTTLS (port 143) are supported for source and destination servers. You can configure each connection independently.