Best Service Provider for Office 365 to Office 365 (cross-tenant)

Comprehensive migration across Microsoft 365 workloads: Includes mailboxes (including primary, archive, shared), OneDrive, SharePoint, and Teams (channels, chats, files, posts). All relevant data—such as permissions, version history, attachments, folder hierarchy, groups, and aliases—is preserved during migration.

MailsDaddy Advanced Migration Features:

Zero downtime ensures business continuity throughout the migration.
Parallel migration capabilities let you migrate multiple mailboxes or data sets simultaneously.
Auto-mapping to match source users with target users automatically.
Selective data migration allows you to include or exclude items like emails, contacts, calendars, and tasks.
Delta migration enables syncing newly received or missed items after the initial migration.
Web-based tool, so no installations are required—monitor progress directly via the web.
Detailed migration reports provided, with metrics like item counts, filtered vs. copied items, and overall status.

Why Choose MailsDaddy?

Extensive experience: Over 9 years of delivering migration services worldwide.
Free demo offered—you can test their service before buying.
24×7 technical support ensures smooth execution and troubleshooting.
No migration size limits, making it suitable for both small businesses and large enterprises.

Tool Version (Client-Side Option)

The MailsDaddy Office 365 to Office 365 Migration Tool is also available as a downloadable client tool. It supports:
Features like preview, batch migration, folder inclusion/exclusion, CSV mapping, and export logs.
A free trial version allows migration of up to 50 items per folder.

Summary Table: MailsDaddy Cross-Tenant Migration

Feature	Details
Workloads Supported	Mailboxes, OneDrive, SharePoint, Teams, permissions, etc.
Downtime	Zero
Migration Approach	Parallel, auto-mapping, selective, delta support
Tool Options	Web-based service + downloadable client tool
Demo / Trial	Free demo + trial migrating up to 50 items/folder
Support	24×7 tech support
Global Experience	9+ years of migration services globally