Other Domains are not showing under the main account

Other Domains are not showing under the main account

Hi,
I have 4 different domains & email addresses and was using google apps. I have been migrating everything over to zoho. However, the various email addresses associated with each domain, whilst they show up in the domain management area, are not showing up in the mail/inbox. The mail itself migrated across, but only the google folders/labels from one email account - the emails themselves are all under the all mail list - one big mess!

The email accounts themselves are all separate logins on zoho - without the old mail or folders. I want them all to be accessible from within the one inbox, with the option to be able to send and receive from any of them. I have clearly done something wrong in my set up but I can't figure out what.

Please help!

Thank you