How to capture customer response of mail forms sent through campaigns

Hi all,

I have created a mail form and target group and attached it with campaign. After executing the campaign I want to capture the customer's response( Mail reply). I have read in book CR600-marketing, that we can capture the mail replies from customers that can be assigned to business partners or campaign.

Please guide how and where i can capture this customer response when he/she replies to the mail.

regards,

kavita chaudhary