Configure Multiple Reply Address on domino server

Hi,

One company has acquired another company, there are two domino servers ‘abc.com’ and ‘xyz.com’.

Query -1

If the person from abc.com (ex.user@abc.com) sends the mail to user of xyz.com (ex.john@xyz.com) mail should go like user@xyz.com, at the same time if the person user@abc.com send the mails to internet domain (ex.push@yahoo.com) the mail should go like user@abc.com.

Query -2

If the person from abc.com (ex.user@abc.com) send the mails to particular domain called “fiat.com, ford.com" the mail should go like user@xyz.com.