What should I review first?

Use the EdbMails migration logs to identify completed, skipped or failed items after each wave, and record exceptions that require reprocessing or manual follow-up.

How do I verify source-to-target user mapping?

Confirm that each source OneDrive site was mapped to the intended target user, which is especially important when users were renamed, domains changed or accounts mapped to different owners.

How do I validate business-critical metadata and access?

Validate metadata, sharing behavior and access requirements explicitly where the project depends on them, rather than assuming every property reproduces identically across tenants.

How do I handle remediation?

Maintain a remediation list for failed items, target-readiness issues, incorrect mappings or content that needs manual handling, assigning an owner and status to each exception.

Who should perform post-migration validation?

Technical administrators review logs and configuration, while business or account owners confirm representative content in the target.

Do I need to validate every item manually?

No. Use the logs plus a risk-based sample of representative accounts while investigating all important failures or exceptions.

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EdbMails

All-in-one Recovery and Migration
- EDB Recovery and Migration
- OST, PST, MBOX, NSF, EML, MSG
- Office 365, Exchange Migration
- SharePoint, OneDrive & Teams
- Google Workspace Migration
- IMAP Migration
- Duplicate Remover
- EdbMails Data Recovery
- Backup Solutions
All Products
EDB Recovery and Migration

EdbMails lets you recover corrupted, damaged, and offline Exchange EDB files, convert EDB mailboxes to PST format, and directly migrate mailbox data to Office 365 and live Exchange Server.

EDB to PST

Recover corrupted, damaged, offline EDB files and convert Exchange EDB mailboxes to PST file format

Public Folder to Exchange

Migrate public folders from an Exchange offline EDB file to live Exchange Server

EDB to Live Exchange Migration

Directly migrate offline Exchange database (EDB) files to live Exchange server

Archive Mailbox to Office 365

Migrate archive mailboxes from offline EDB files directly to Office 365

EDB to Office 365 Migration

Directly migrate offline Exchange database (EDB) files to Office 365

Public Folder to Office 365

Migrate public folders from an offline Exchange EDB file to Office 365

OST, PST, MBOX, NSF, EML, MSG Export and Migration

EdbMails lets you to recover OST and PST files, export OST, PST, MBOX, NSF, EML, and MSG files to PST files, and directly migrate OST, PST, MBOX, and NSF mailbox data to Office 365 and live Exchange Server.

OST Recovery and Migration

Recover offline OST files, convert OST to PST, and migrate OST to Office 365 and Exchange Server

PST Recovery and Migration

Recover Outlook PST files , Export PST to PST, migrate PST to Office 365 and Exchange Server

MBOX Export and Migration

Export MBOX to PST, migrate MBOX to Office 365 and Exchange Server

NSF Export and Migration

Export NSF to PST, migrate NSF to Office 365 and Exchange Server

EML to PST Export

Convert EML files to Outlook PST files

PST to MSG Export

Convert Outlook PST file to MSG file format

MSG to PST Export

Export MSG files to Outlook PST files

Office 365, Exchange Migration

EdbMails lets you securely migrate mailboxes across Microsoft 365, Exchange, Google Workspace (G Suite), and IMAP-supported servers such as Outlook, Gmail, Zimbra, Zoho Mail, and cPanel, ensuring zero downtime.

Office 365 Migration

Migrate between Office 365 tenants, Office 365 to Exchange, Office 365 to PST, PST files to Office 365.

Exchange Migration

Migrate between any Exchange Servers, Exchange to Office 365, Exchange to PST, PST files to Exchange.

Tenant to Tenant Migration

Migrate Mailboxes, Public Folders, Archive Mailboxes between Office 365 Tenants.

Exchange to Office 365

Migrate Mailboxes, Public Folders, Archive Mailboxes from live Exchange server to Office 365.

Office 365 to IMAP

Migrate Office 365 to IMAP, Office 365 to Gmail, Office 365 to Outlook, Office 365 to Zoho etc.

Exchange to IMAP

Migrate from live Exchange Server to IMAP servers such as Gmail, Outlook, and Zoho Mail.

Public Folder to Office 365

Migrate Public Folders between Office 365 tenants with complete folder hierarchy and mailbox data integrity.

Exchange to PST

Export live Exchange Server mailboxes, public folders, and archive mailboxes to Outlook PST files.

SharePoint, OneDrive & Microsoft Teams Migration

EdbMails lets you migrate SharePoint sites, OneDrive data, Microsoft Teams, teams, channels, chats, permissions, and documents between Microsoft 365 tenants while maintaining the existing folder structure and data integrity.

SharePoint Online Migration

Migrate documents, lists, files and folders from SharePoint sites.

OneDrive for Business Migration

Migrate documents, lists, files, folders, private chats from OneDrive.

Microsoft Teams Migration

Migrate Teams, chats, channels, documents, files and folders etc.

Google Workspace / G Suite Migration

EdbMails offers secure Google Workspace migration to Office 365, Exchange, or IMAP, and export to PST covering emails, contacts, calendars and tasks.

Google Workspace Migration

Migrate emails, calendars, contacts, tasks from Google Workspace to Google Workspace, office 365, Exchange and IMAP. Export to PST

Google Workspace to Office 365

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to Office 365

Google Workspace to Exchange Server

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to on-Premise Exchange Server

Google Workspace to IMAP

Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to IMAP, Outlook, Zimbra, Zoho etc.

Google Workspace to Google Workspace

Migrate emails, calendars, contacts, tasks between two Google Workspace / G Suite tenants

Google Workspace to PST

Export emails, calendars, contacts, tasks from Google Workspace / G Suite to Outlook PST files

IMAP Migration

EdbMails IMAP Migration tool lets you easily migrate emails from IMAP servers such as Outlook, Gmail, Zoho Mail, Zimbra, cPanel, and more. Supports IMAP to IMAP, Office 365, Exchange Server, PST, and bulk PST to IMAP migration.

IMAP Email Backup & Migration

Backup and migrate emails from IMAP servers to PST, Office 365, and On-Premises Exchange Server

IMAP to Office 365

Migrate emails, folders, and attachments from IMAP servers to Office 365

IMAP to Exchange

Migrate emails, folders, and attachments from IMAP servers to on-premises Exchange Server

IMAP to PST

Export emails, folders, and attachments from IMAP servers to Outlook PST files for backup

PST to IMAP

Migrate emails, folders, and attachments from bulk PST files to IMAP servers

Duplicate Remover

EdbMails Duplicate Remover lets you easily remove duplicate items from Office 365 and Exchange Server, and from IMAP, Outlook, Gmail, Zimbra, Zoho Mail, etc., ensuring a clean and organized mailbox.

Remove Duplicates

Easily clean up your Office 365, Exchange, Outlook and IMAP accounts by removing duplicate emails.

Remove Duplicates from Office 365

Remove duplicate emails, calendars, contacts, journal tasks, etc. from Office 365.

Remove Duplicates from Exchange Server

Remove duplicate emails, calendars, contacts, journal tasks, etc. from live Exchange Server.

Remove Duplicates from IMAP, Outlook

Remove duplicate emails, attachments from IMAP, Outlook, Gmail, Zimbra, Zoho Mail etc.

Exchange, SharePoint, OneDrive, Teams and Office 365 Backup

EdbMails enables secure, automated backup and recovery for Microsoft 365 services including Exchange Online, SharePoint, OneDrive, Teams, and Live Exchange Server with complete data protection and restore flexibility.

Office 365 Backup

Incremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup

Exchange Server Backup

Incremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup

SharePoint, OneDrive & Teams Backup

Backup Online site collections, Team sites, Office 365 groups, all documents etc.

EdbMails Data Recovery

EdbMails Data Recovery Software lets you recover permanently deleted data, including photos, videos, documents, and archived files, from partitions on hard drives, SSDs, USB drives, SD cards, and external storage devices.

EdbMails Data Recovery

Recover and restore permanently deleted data from hard drives, SSDs, USB drives, SD cards, and etc.

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OneDrive Post-Migration Validation

Verify Migrated OneDrive Files, Users, and Destinations

Confirm that OneDrive migration results meet your project requirements before handing over new accounts to users. This EdbMails guide covers checking target accounts, file and folder availability, migrated content, sharing considerations, and migration logs so outstanding issues can be identified.

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How to Validate OneDrive Data After Migration

OneDrive post-migration validation confirms that the intended users, files and folders reached the correct target OneDrive accounts and that migration exceptions are identified before the project is closed.

The current EdbMails OneDrive guide documents migration logs and target-side review after migration. A strong validation process combines those logs with representative checks in the destination rather than relying only on a completed migration status.

Review migration logs first

Use the EdbMails migration logs to identify completed, skipped or failed items after each migration wave. Record any exceptions that require reprocessing or manual follow-up before the project is signed off.

Verify source-to-target user mapping

Confirm that each source OneDrive site was mapped to the intended target user. This is especially important when users were renamed, domains changed or source accounts intentionally mapped to different destination owners.

Validate representative files and folders

Sign in to representative target OneDrive accounts and verify that expected folders and files are present and usable. Select a mix of ordinary users and larger or more complex accounts rather than checking only the easiest cases.

Check recent changes after incremental migration

If a later incremental pass was used, verify that representative new or modified source content appears in the destination. Compare the timing of recent changes against the migration window and review the corresponding log entries.

Validate business-critical metadata and access

If your project depends on specific metadata, sharing behavior or access requirements, validate those items explicitly. Do not assume every property or sharing relationship will reproduce identically across tenants without verification.

Record remediation actions

Maintain a remediation list for failed items, target-readiness issues, incorrect mappings or content that requires manual handling. Assign an owner and status to each exception so unresolved issues are visible after cutover.

Obtain migration sign-off

Close the migration only after technical validation and any required business-owner checks are complete. Retain the final mapping, migration logs, exception list and validation notes as part of the project record.

Frequently Asked Questions

What is OneDrive post-migration validation?
It confirms that the intended users, files and folders reached the correct target OneDrive accounts and that migration exceptions are identified before the project is closed.
Is a completed migration status enough to close the project?
No. Combine the migration logs with representative checks in the destination rather than relying only on a completed status.
What should I review first?
Use the EdbMails migration logs to identify completed, skipped or failed items after each wave, and record exceptions that require reprocessing or manual follow-up.
How do I verify source-to-target user mapping?
Confirm that each source OneDrive site was mapped to the intended target user, which is especially important when users were renamed, domains changed or accounts mapped to different owners.
How do I validate files and folders?
Sign in to representative target OneDrive accounts and verify expected folders and files are present and usable, selecting a mix of ordinary users and larger or more complex accounts.
How do I validate after an incremental migration?
Verify that representative new or modified source content appears in the destination, compare the timing of recent changes against the migration window and review the corresponding log entries.

How do I validate business-critical metadata and access?
Validate metadata, sharing behavior and access requirements explicitly where the project depends on them, rather than assuming every property reproduces identically across tenants.
How do I handle remediation?
Maintain a remediation list for failed items, target-readiness issues, incorrect mappings or content that needs manual handling, assigning an owner and status to each exception.
When can I obtain migration sign-off?
Close the migration only after technical validation and any required business-owner checks are complete, retaining the final mapping, logs, exception list and validation notes.
Who should perform post-migration validation?
Technical administrators review logs and configuration, while business or account owners confirm representative content in the target.
Do I need to validate every item manually?
No. Use the logs plus a risk-based sample of representative accounts while investigating all important failures or exceptions.

Related OneDrive migration resources

OneDrive Migration Tool

OneDrive Migration Checklist

OneDrive Migration Best Practices

OneDrive Incremental Migration

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