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mediumExchangemailbox migrationnew featurelearn_exchange · May 20, 2026

CSV files for mailbox migration in Exchange Online

Exchange Online now supports using CSV files to bulk migrate user mailboxes, enabling administrators to efficiently manage large-scale mailbox migrations through the Exchange Admin Center or PowerShell cmdlets. This enhancement simplifies administrative tasks for organizations with multiple users requiring mailbox migration.

You can use a comma-separated values (CSV) file to bulk migrate a large number of user mailboxes. You can specify a CSV file when you use the Exchange admin center (EAC) or the New-MigrationBatch cmdlet in Exchange Online PowerShell to create a migration batch. Using a CSV to specify multiple users to migrate in a mi…
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Audience
admin
Environment
cloud
Ontology Topics
AZ-104MD-102
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CSV files for mailbox migration in Exchange Online | 365Forge