SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 10
The mail shows root@<wrongserver> as its mail from
Wrong server name shown through postfix mail
Open the /etc/postfix/main.cf file
Edit the myhostname setting from its default entry to the correct server name and domain
Restart postfix by typing rcpostfix restart
The host name attribute had not been updated correctly and was using its default setting.