Email conversion
guides & tips
Step-by-step tutorials to convert your email files between formats. Compare features, learn best practices, and migrate with confidence.
Latest articles
Convert OST to PST Free — 3 Methods That Actually Work (2026)
3 free methods to convert OST to PST in 2026. Online tool (no install), Outlook archive (if profile works), and desktop software. Includes orphaned OST recovery.
readpst Alternative: Online PST Converter vs CLI Tool
readpst is a powerful Linux CLI tool for PST extraction — but it has limits. Compare readpst vs MailtoPst: when to use each, and how to get the same results online.
What Is an EML File? How to Open, Read, and Convert It
EML files store individual emails and open in almost any email client. Learn what's inside an EML file, how to open one, and how to convert EML to PST, MBOX or MSG.
Apple Mail to Outlook: The Complete Migration Guide (2026)
Migrate all your Apple Mail emails to Microsoft Outlook. Convert EMLX or MBOX to PST online. Step-by-step guide for macOS users.
Convert MBOX to PST Online Free — No Software Needed (2026)
Convert MBOX to PST online without installing anything. Free for your first conversion. Works on Windows, Mac and Linux — results in under 2 minutes.
Email Migration Checklist: Everything You Need Before Switching
Complete email migration checklist. Plan your move between Outlook, Thunderbird, Gmail, and Apple Mail with zero data loss.
How to Migrate Gmail to Outlook — Google Takeout to PST (2026)
Move your Gmail emails to Outlook in 3 steps: export with Google Takeout, convert MBOX to PST free online, import into Outlook. No data loss.
How to Open an MBOX File — Windows, Mac and Linux (Free Methods)
Open any MBOX file without Thunderbird. Free methods for Windows, Mac and Linux — including online viewer, Apple Mail import, and format conversion.
How to Open a PST File: Every Method Explained (2026)
All methods to open a PST file in 2026. With Outlook, without Outlook, on Windows, Mac, Linux, and online. Troubleshooting included.
Open PST File Without Outlook — Every Method (Windows, Mac, Linux)
Open any PST file without installing Outlook. Free online viewer, plus methods for Windows, Mac and Linux. Works in 30 seconds, no software needed.
How to Migrate From Outlook to Apple Mail on Mac
Complete guide to migrating your emails from Microsoft Outlook to Apple Mail. Convert PST to MBOX and import into macOS Mail app.
How to Migrate From Outlook to Thunderbird (Complete Guide)
Step-by-step guide to migrating emails from Microsoft Outlook to Mozilla Thunderbird. Convert PST to MBOX online with zero data loss.
Thunderbird vs Outlook: Email Formats, Storage, and Migration
Compare Thunderbird and Outlook email formats. Understand MBOX vs PST storage, key differences, and how to migrate between the two clients.
Convert PST to MBOX Without Outlook — Free Online (Mac, Linux, Windows)
Convert PST to MBOX format without installing Outlook. Free online converter — works on Mac, Linux and Windows. Import into Thunderbird or Apple Mail in minutes.
What Is a PST File? How to Open, Read, and Convert It
PST files store Outlook emails, contacts and calendars. Learn what's inside, how to open one without Outlook, and how to convert it free online.
Open PST File on Mac Without Outlook — Free Online Method
Open any PST file on Mac without buying Outlook. Free online converter — upload PST, get MBOX or EML, import into Apple Mail or Thunderbird in minutes.
Convert OST to PST Free — Without Exchange or Outlook
Convert any orphaned OST file to PST format for free — no Exchange server, no Outlook needed. Online tool, EU servers, results in minutes.
How to Import MBOX Into Outlook — Convert MBOX to PST Free
Outlook can't open MBOX directly. Convert MBOX to PST free online, then import into Outlook in 3 steps. Works on Windows and Mac.
Online vs Desktop Email Converters: Which Should You Choose?
Compare online and desktop email conversion tools. Discover why cloud-based converters are faster, more accessible, and require no installation.
How to Convert Email Files Without Installing Any Software
Convert PST, MBOX, EML, MSG, and other email formats directly in your browser. No download, no installation — works on Mac, Windows, and Linux.
How to Migrate From Thunderbird to Outlook (Complete Guide)
Step-by-step guide to migrating all your Thunderbird emails to Microsoft Outlook. Convert MBOX to PST and import with zero data loss.
How to Convert EMLX to PST (Apple Mail to Outlook)
Complete guide to converting Apple Mail EMLX files to Outlook PST format. Migrate from Mac to Windows without losing your emails.
How to Convert Large Email Archives (Up to 50 GB)
Guide to converting large PST, MBOX, and OST email archives. Learn how MailtoPst handles files up to 50 GB with resumable uploads.
MSG vs EML: Key Differences and How to Convert Between Them
MSG is Outlook-only, EML opens everywhere. Learn the difference, when to use each format, and how to convert MSG to EML or EML to MSG free online.
How to Convert OLM to PST (Outlook Mac to Windows)
Step-by-step guide to converting Outlook for Mac OLM files to PST format for Outlook Windows. Migrate your Mac emails to PC.
How to Read an OST File Without Exchange Server (Free)
Open and read orphaned OST files without an Exchange server. Free online method — no Outlook, no desktop software, no server connection needed.
Email Archiving Best Practices for Businesses
Essential best practices for email archiving in enterprise environments. Learn about format selection, compliance requirements, and long-term storage strategies.
GDPR and Email Archiving: What You Need to Know
How GDPR affects email archiving and migration. Learn about data minimization, right to erasure, and choosing GDPR-compliant email tools.
Conversion guides
Convert Any Email to EML — Universal Export Guide
Export emails from any format (PST, OST, OLM, MBOX, MSG) to EML. Universal email conversion with MailtoPst. Works with Outlook, Thunderbird, Apple Mail, and more.
Convert Any Email to MBOX — Universal Export Guide
Convert email files from any format (PST, OST, OLM, EML, MSG) to MBOX. Universal conversion for Thunderbird, Gmail import, and email archiving. Works online.
Import Any Email to Office 365 — Migration Guide
Migrate emails from any format to Office 365 (Microsoft 365). Convert EML, MBOX, OLM, or MSG files to PST for import. Complete step-by-step migration guide.
Convert Any Email to PST — Outlook Import Guide
Convert email files from any format (EML, MBOX, OLM, MSG, EMLX) to Outlook PST. Create PST files for import into Microsoft Outlook. Works online, no Outlook needed.
Convert EML to EMLX — Online Tool
Convert EML files to EMLX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EML to MBOX — Online Tool
Convert EML files to MBOX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EML to MSG — Online Tool
Convert EML files to MSG format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EML to OLM — Online Tool
Convert EML files to OLM format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EML to PST Free Online — Batch & Single Files
Convert EML files to PST format free online. Supports single files and batch conversion. No Outlook needed — works on Windows, Mac and Linux.
Import EML to Thunderbird — Direct File Import
Import EML email files into Mozilla Thunderbird. Drag-and-drop EML files or use ImportExportTools NG for bulk import. Works on Windows, macOS, and Linux.
Convert EMLX to EML — Online Tool
Convert EMLX files to EML format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EMLX to MBOX — Online Tool
Convert EMLX files to MBOX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EMLX to MSG — Online Tool
Convert EMLX files to MSG format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EMLX to OLM — Online Tool
Convert EMLX files to OLM format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert EMLX to PST — Online Tool
Convert Apple Mail EMLX files to Outlook PST format. Migrate from macOS Mail to Microsoft Outlook. EU servers, GDPR compliant.
Convert MBOX to EML — Online Tool
Convert MBOX files to EML format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MBOX to EMLX — Online Tool
Convert MBOX files to EMLX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MBOX to MSG — Online Tool
Convert MBOX files to MSG format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MBOX to OLM — Online Tool
Convert MBOX files to OLM format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MBOX to PST Free Online — Thunderbird & Gmail to Outlook
Convert MBOX to PST online for free. Import Thunderbird, Gmail or Apple Mail archives into Outlook. No software to install, first conversion free.
Import MBOX to Thunderbird — Direct Import Guide
Import MBOX files into Mozilla Thunderbird. Native format support for Gmail Takeout, Apple Mail exports, and Unix email archives. Step-by-step instructions.
Import MBOX to Zimbra — Server Migration Guide
Import MBOX files into Zimbra Collaboration Suite. Server-side import with zmmailbox CLI or IMAP client upload. Migrate from Thunderbird, Gmail, or any MBOX source.
Convert MSG to EML — Online Tool
Convert MSG files to EML format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MSG to EMLX — Online Tool
Convert MSG files to EMLX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MSG to MBOX — Online Tool
Convert MSG files to MBOX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MSG to OLM — Online Tool
Convert MSG files to OLM format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert MSG to PST Free Online — No Outlook Required
Convert MSG files to PST format free online. Single or bulk conversion, attachments preserved. Works on any OS — no Outlook installation needed.
Import OLM to iCloud Mail — Outlook Mac to Apple Mail
Migrate Outlook for Mac OLM archives to iCloud Mail. Stay in the Apple ecosystem without Outlook. Convert OLM to EML or MBOX, import via Apple Mail.
Import OLM to IMAP Server — Mac Outlook Migration
Migrate Outlook for Mac OLM files to any IMAP server. Convert OLM to EML or MBOX with MailtoPst, then upload to your IMAP mailbox. No Windows needed.
Convert OLM to MBOX — Online Tool
Convert Outlook for Mac OLM files to MBOX format online. Migrate from Outlook Mac to Thunderbird, Apple Mail, or any MBOX-compatible client. EU servers, GDPR compliant.
Convert OLM to PST — Online Tool
Convert Outlook for Mac OLM files to Windows PST format. Migrate from Mac to Windows Outlook seamlessly. EU servers, GDPR compliant.
Convert OST to EML — Online Tool
Convert OST files to EML format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Import OST to Gmail — Migration Guide
Migrate Outlook OST files to Gmail. Convert offline Exchange cache to MBOX or EML, then import into your Google account. Works even with orphaned OST files.
Import OST to iCloud Mail — Exchange to Apple Migration
Migrate Outlook OST cache files to iCloud Mail. Recover orphaned Exchange data and import into your Apple ecosystem. Convert with MailtoPst, import via Apple Mail.
Import OST to IMAP Server — Recovery & Migration
Recover and migrate Outlook OST emails to any IMAP server. Convert orphaned OST cache files to EML or MBOX, then upload to your IMAP mailbox. No Outlook needed.
Convert OST to MBOX — Online Tool
Convert OST files to MBOX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Convert OST to MSG — Online Tool
Convert OST files to MSG format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Import OST to Office 365 — Migration Guide
Migrate OST files to Office 365 (Microsoft 365). Convert offline Outlook cache to cloud mailbox. Step-by-step guide with multiple methods.
Convert OST to PST Free Online — No Outlook or Exchange Needed
Convert orphaned or inaccessible OST files to PST format free online. No Exchange server, no Outlook needed. EU servers, GDPR compliant, files deleted after 24h.
Convert PST to EML Free Online — Extract Emails Without Outlook
Extract emails from PST files as individual EML files — free online. No Outlook needed. Works on Windows, Mac and Linux. First conversion free.
Convert PST to EMLX — Online Tool
Convert PST files to EMLX format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Import PST to Gmail — Step-by-Step Migration
Import Outlook PST files to Gmail. Convert PST to MBOX or EML, then import via Google Workspace migration tools or IMAP sync. Complete guide.
Import PST to iCloud Mail — Outlook to Apple Migration
Migrate Outlook PST emails to iCloud Mail. Convert PST to EML or MBOX with MailtoPst, then import into your iCloud mailbox via Apple Mail or IMAP. Complete guide.
Import PST to Any IMAP Server — Upload Guide
Upload Outlook PST emails to any IMAP server. Convert PST to EML or MBOX with MailtoPst, then sync to your IMAP mailbox. Works with any provider.
Convert PST to MBOX Free Online — Open in Thunderbird or Apple Mail
Convert PST to MBOX format free online. Open your Outlook archive in Thunderbird, Apple Mail or any MBOX-compatible client. No software required.
Convert PST to MSG — Online Tool
Convert PST files to MSG format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Import PST to Office 365 — Complete Migration Guide
Learn how to import PST files into Office 365 (Microsoft 365). Step-by-step guide covering Network Upload, drive shipping, and third-party tools like MailtoPst.
Convert PST to OLM — Online Tool
Convert PST files to OLM format online. Free tool, EU servers, GDPR compliant, auto-delete 24h. No software to install.
Import PST to Thunderbird — Outlook to Thunderbird Migration
Migrate Outlook PST emails to Mozilla Thunderbird. Convert PST to MBOX or EML with MailtoPst, then import directly into Thunderbird. Free, cross-platform solution.
Import PST to Zimbra — Outlook to Zimbra Migration
Migrate Outlook PST files to Zimbra Collaboration Suite. Convert PST to MBOX or EML for import via Zimbra admin tools or IMAP. Complete step-by-step guide.