I migrated a mailbox a few days ago, but didn't do the cutover on the MX records until today.  How can I rerun the migration to sync the mailboxes?  The old account has had a fair amount of activity since the first migration.

I am used to other systems (O365 for instance) that let you do a staged migration.  Then when everything is good, you turn it off.  Withe the Zoho migration, it ran once and then showed complete.  No way to restart it?