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Office 365 Tenant Migration

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The Landlord
Post time 2021-1-18 05:19:27 | Show all posts
To minimize downtime and user inconvenience, determine the best method for migration.

Migration for 500 users or less: Migrate Mail Calendar and contact data to target tenant mailboxes. Limit mail migration by date if possible; for example, the last 6 months of data.

Migration for more than 500 users: Use a multi-pass approach where you migrate contacts, calendars, and only 1 week of email for all users, then on succeeding days or weeks, do multiple passes to fill in the mailboxes with older email data.

Start your mail migration via the third-party migration tool.

Monitor migration progress with the tools provided by the vendor. Send out periodic progress reports during migration to management and migration team.

Do second or third pass migrations, optional after all migrations are complete.

At the end of migration, Outlook 2007 and 2010 will sync the entire mailbox for each user, consuming considerable bandwidth depending on how much data you migrated into each mailbox. Outlook 2013 will only cache 12 months of data by default. This setting can be configured to more or less data, for example, only 3 months of data, which can lighten bandwidth usage.
To know more about office 365 tenant migration visit O365CloudExperts.

Regards,
Caleb
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