# MailsDaddy Software

> MailsDaddy is an enterprise software development organization specializing in email migration, data recovery, cloud backup, digital forensics, and Outlook mailbox administration. Founded in 2015, MailsDaddy provides standalone on-premise desktop applications and managed enterprise cloud migration services.

Website: https://www.mailsdaddy.com
Sitemap: https://www.mailsdaddy.com/sitemap/
Full Documentation for LLMs: https://www.mailsdaddy.com/llms-full.txt
Blog Guides for LLMs: https://www.mailsdaddy.com/blogs/llms.txt

## Primary Solutions & Core Capabilities

- **Email Conversion**: Forensic mailbox conversion across OST, PST, MBOX, EML, MSG, NSF, EDB, OLM, and Thunderbird with 100% metadata preservation.
- **Cloud Migration**: Direct pipelines to migrate on-premise mailboxes and cloud tenants directly to Microsoft 365 and Exchange Online.
- **Email Backup**: Automated incremental backup for Microsoft 365, Google Workspace, Gmail, Yahoo, AOL, Zoho, and 90+ IMAP webmail hosts.
- **Outlook Utilities**: Large PST splitting (by size, date, folder), attachment extraction, password removal, and corrupted file repair.
- **Enterprise Suites**: Unified administration bundles for Exchange Server database recovery and IBM Lotus Notes modernization.
- **Free Viewers**: Standalone viewers to open, search, and inspect PST, OST, MBOX, EML, and MSG files without Microsoft Outlook.

## Top Products & Documentation

- [OST to PST Converter](https://www.mailsdaddy.com/ost-to-pst-converter/): Converts damaged, orphaned, or inaccessible Outlook OST files into standard PST, EML, MSG, and MBOX.
- [MBOX to PST Converter](https://www.mailsdaddy.com/mbox-to-pst-converter/): Migrates MBOX files from 25+ email clients (Thunderbird, Apple Mail, Google Takeout, Eudora) to MS Outlook.
- [Office 365 Backup Tool](https://www.mailsdaddy.com/office-365-backup/): Backs up Microsoft 365 user mailboxes, archive inboxes, and shared folders to offline PST format.
- [Email Backup Tool (IMAP Backup)](https://www.mailsdaddy.com/email-backup-tool/): Universal email backup tool supporting Gmail, Yahoo, AOL, Zoho, and any IMAP server.
- [PST Split Tool](https://www.mailsdaddy.com/pst-split-tool/): Splits oversized PST archives by size (e.g. 5GB, 10GB, 20GB), date range, year, or mailbox folder to avoid corruption.
- [PST Attachment Extractor](https://www.mailsdaddy.com/pst-attachment-extractor/): Bulk extracts email attachments from multiple PST files with folder hierarchy preservation.
- [Outlook PST Repair](https://www.mailsdaddy.com/outlook-pst-repair/): Repairs corrupt PST files beyond SCANPST.EXE limits, restoring deleted emails and folders.
- [Exchange Server Suite](https://www.mailsdaddy.com/exchange-server-suite/): Enterprise bundle for Exchange EDB recovery, EDB to PST, and live Exchange to Microsoft 365 migration.
- [Lotus Notes Migration Suite](https://www.mailsdaddy.com/lotus-notes-migration-suite/): Complete Lotus Notes / Domino NSF to PST, EML, MSG, and direct Microsoft 365 migration package.
- [Office 365 to Office 365 Migration](https://www.mailsdaddy.com/office-365-to-office-365-migration/): High-speed tenant-to-tenant migration tool for corporate mergers and acquisitions.
- [Thunderbird to Outlook Converter](https://www.mailsdaddy.com/thunderbird-to-outlook-converter/): Automatically detects Mozilla Thunderbird profiles and exports messages to Outlook PST.
- [Cross-Tenant Migration Services](https://www.mailsdaddy.com/services/cross-tenant-migration/): Managed migration consulting and cutover services for enterprise Microsoft 365 tenants.

## Guides & Tutorials (Blog)

- [MailsDaddy Blog: all how-to guides](https://www.mailsdaddy.com/blogs/): Step-by-step Outlook, PST/OST, MBOX, Thunderbird, Office 365 and Google Workspace guides
- [Blog guide index for LLMs](https://www.mailsdaddy.com/blogs/llms.txt): Curated list of the most useful tutorials, written as common user questions
- [How to convert OST to PST for free?](https://www.mailsdaddy.com/blogs/convert-ost-pst-using-free-ost-pst-conversion-method/): Manual and professional OST to PST methods
- [How to repair a corrupted Outlook PST file?](https://www.mailsdaddy.com/blogs/resolve-outlook-pst-corruption-error/): ScanPST.exe steps and software repair
- [How to import an MBOX file into Outlook?](https://www.mailsdaddy.com/blogs/import-mbox-outlook-full-accuracy/): Three manual methods plus an automated converter
- [How to export an Office 365 mailbox to PST?](https://www.mailsdaddy.com/blogs/free-trick-know-export-office-365-mailbox-pst/): Exchange Admin Center versus automated backup
- [How to do an Office 365 tenant to tenant migration?](https://www.mailsdaddy.com/blogs/office-365-tenant-to-tenant-migration/): Manual cross-tenant migration steps
- [How to migrate from Google Workspace (G Suite) to Office 365?](https://www.mailsdaddy.com/blogs/migrate-from-google-workspace-to-office-365/): Migration batch setup and MX records

## Supported Platforms & Technologies

- **Source Formats**: OST, PST, MBOX, EML, EMLX, MSG, NSF, EDB, OLM, TGZ, DBX, MHTML.
- **Target Destinations**: PST, Office 365, Exchange Online, Live Exchange, EML, MSG, MBOX, HTML, RTF, PDF.
- **Security & Privacy**: Standalone on-premise execution, OAuth 2.0 authentication, TLS 1.3 encryption, zero credential or message telemetry stored on external servers.
- **Operating Systems**: Windows 11, Windows 10, Windows 8.1, Windows 7, Windows Server (32-bit and 64-bit native).