Forum Discussion
Hybrid Migration and Target Address Update
Thank you mderooij
I realized that changing the target address to <domainname>.onmicrosoft.com before completing the migration solved the problem. This change was updated on the target address value for all users during the migration thereby solving the problem, although I expected the <domainname>.mail.onmicrosoft.com to be enough for mail routing to office 365, beats me why i still have to change to <domainname>.onmicrosoft.com before they can receive mails.
burfadmin The targetAddress should be set by MRS when finalizing the move. What domain you specify with New-MigrationBatch -TargetDeliveryDomain <...> ? That domain determines the address to pick from the proxyaddresses to stamp as targetAddress (and the tenant object should have this proxy address, your on-prem normally should not - did you perhaps add this to the default e-mail address policy on-prem?).