To bulk change the Spot addresses to the tenantname.onmicrosoft.com, Adhere to the directions during the How can I bulk alter the domain title in migration email addresses? post. Take note: DeploymentPro is incorporated with the Consumer Migration Bundle license. DeploymentPro can't be bought to be a standalone support license, http://office365migrationguide13455.post-blogs.com/6287687/the-2-minute-rule-for-migration-office-365