Redirects point to an email address, not a provider, so its no change.
Redirection is not a sound strategy, especially if the redirection service does not implement SRS. Emails should be delivered direct to the destination mailbox, rather than being redirected.
After migration, you might explore the possibility of transferring your domain name into the the new service.
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
