Cross-Domain Administration Request Mail File Move

When a company splits or purchases another company that use Domino it would be very handy to be able to use the Cross Domain Admin requests to be able to move a mail file cross domain. You can delete, create, rename. But mail file domain move isn't possible. It seems to be an AdminP limitation by design: the standard Domino Administration Process (AdminP) user move request does not support cross-domain user moves. Specifically, the error: “Both the old and the new mail/roaming servers must be in the same domain...” is a hardcoded rule in AdminP, which checks the Domain field in the server documents for both the source and destination servers. If they're not the same, the AdminP Move User request fails immediately, even if you have all the cross-certifications, connections, and permissions in place.