Forum Discussion
Migration users from Active Directory to Exchange Online fails
I am trying to migrate users from Active Directory to Exchange Online, but the following error message appears: Error: MigrationPermanentException: The target mailbox doesn't have an SMTP proxy matc...
Generally speaking, you'd want to adjust your email address policy to include the domain.mail.onmicrosoft.com addresses. https://docs.microsoft.com/en-us/exchange/troubleshoot/move-or-migrate-mailboxes/no-smtp-proxy-matching