Legacy integration between Exchange 2003 and Exchange 2010

Dear Team,

we are using Microsoft Exchange 2003 & 2010 Server for Emails, now we have both servers are connected, we want to raise new Single incident request for doing this activity, we want disconnect 2003 server from 2010 server so accordingly need support, we are ready to pay for this incident, 

pls do the needful,

Thanks & regards

Anteshwar Bhosale