how to configure sendmail for multiple domains

[surendra]

Hi

this is surendra iam new to linux, here iam using Redhat 9.0 and i have made a mail server using sendmail for the LAN for one domain name. now i want to make one more domain and for that mail server too in the same server means i want to configure sendmail for the 2 different domains and i want to create users for the 2 domains individually.

if any one helps me in this i will be very happy

thnks in advance