Office 365 tenant migration and email address change

[Juergen]

Hi all,

we have a Confluence cloud version connected to our Office 365 tenant name.com (example) and our company was bought a while ago and will change the name soon.
Now we need to migrate our office 365 tenant including all users(also connected to confluence) to a new tenant with name othername.com.
As all users in confluence are linked to their email addresses and this will change, my question is....
is there a way to takeover their old confluence accounts and personal spaces with their new email addresses?