How to chaneg Host name.

Hi,

My email is going out as xxx@localhost.localdomain. This is getting us nailed by CBL .

I have changed the etc/host file to add 23.32.54.13 mail.madeupdoamain.com

I then chanmged the network file to the madeup doamin.

I changed my hostname to madeup domain.

But still no luck. It's still send this a localhost.localdomain.

Can someone plese help.

BTW, we using sendmail for a program and only for that. Out real domin is tied to our real email server that's not Linus. I use linusx as a firewall. someday I want to use it as the real mail server.

Thanks again