[wellylug] sendmail local /relay

[E.Chalaron]

Hi all

For a reason I do not get, one of my machine is sending cron mail Ok the 
other not.
Not being a sendmail specialist, I used the RPM from Mdk.
Though I had a look under syslog to see what is going on.

The machine that does send cron mail is reporting :
mailer=local and relay : localhost.localdomain
The machine that does not send cron mail reports :
mailer=relay relay : localhost.co.nz

My guess is that not findind localhost.co.nz all mail is either lost or sent 
somewhere I wish not !! 

Where can I modify the localhost.co.nz
I tried to find the config.mc for sendmail wihout success.

Thanks
Edouard