domain transfer from OVH account to OVH account

[breizhwave]

Hi, I successfully transfered a domain from one OVH account to another OVH account, using the reassign contact on domain contact page, works fine after acceptation on both sides of domain and DNS transfer, but the email service is still visible for the domain on the previous owner, not on the new owner. Do we have to wait so that the service installs ? relog ?