aix email integration with exchange

Hi All,

I realized now that the root email is integrated with exchange. All the email of root is now being sent also to the aliases of aixadmin or to my email.

I would like to know how is AIX integrated to exchange. What would be modified on AIX? Probably modify these files: /etc/hosts, /etc/aliases. What else? Please give me more info on these topic.

Thanks in advance,
itik