Hi @Julia_Forbes and thanks for reaching out!
I’d recommend reaching out directly to our support team who will be able to take a closer look into this for you! To help speed up the process make sure to provide the following info:
- Your old and new domain name
- Possibly a list with the email address of users who haven’t been able to add their new email address
Sorry for not being able to help further via the Forum, but let me know if you have any follow up questions!