more domains with sendmail
 

I have to domains on my server (domain1.com and domain2.com)
on domain 1.com is running sendmail, and i want to be able to send mails not only to domain1.com, but to domain2.com as well
( the domains are on one single computer).
How can i bind sendmail so it can receave and send mails from both the domains

Thx in advance