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Re: Migrate Domain and email to new tenant.
Hi, we do it in this way normally for our customers: Define migration-date (day x) old-tenant: old.onmicrosoft.com, new tenant: new.onmicrosoft.com, default-domain: contoso.com (set up on old.onmicrosoft.com) Setup new mailboxes on new.onmicrosoft.com Pre-migrate content older then 90days from old.onmicrosoft.com to new.onmicrosoft.com (by migrationwiz.com) set TTL of contoso.com to 5min (day x -72h) on day x, remove contoso.com from old.onmicrosoft.com (by script remove it from everywhere (mailboxes, alias, groups etc.) add domain contoso.com to new.onmicrosoft.com make the domain verification add by script the domain to mailboxes, alias, groups etc. Finalize the migration (full-migration) trough migrationwiz.com to get the rest of the content (newer tan the 90days of the past) Attach security permissions of mailboxes and so on I hope these will help. Regards, Matthias4KViews0likes1Comment