cant send email (using sendmail) to newly added domain user
 

i inherited the maintenance of a mail server using RH linux 9 and sendmail

we recently added a new domain say aaa.com, but I cant send to user1@aaa.com from hotmail

user1@aaa.com can send to user2@aaa.com fine.

the dns cant seem to be seen from hotmail. Ive configured all I can inthe redhat server but might be missing something

Ive added the user to the virtusertable and the domain to the local-host-file

please help!