Mdaemon Mails

Dear All,

Kindly help me on the following scenario:

we have a Mdaemon ver 9 mail server that is mail.company.com at HQ. And one or our branch mail server which also running on mdaemon. that is branch.company.com. now the problem is that branch mail server is crashed, becoz of that, at branch those users can’t send and receive mail using user@branch.company.com.

so i had asked our isp to point that server to HQ mail server. i.e branch.company.com to HQ.company. And the isp has done the same. can some one can guide me how to configure those setting on mdaemon at HQ server.

Thanks in advance.

siva