On 30/10/06, Tony Wicks <tony at prophecy.net.nz> wrote: > Hi all, Ive done this before but the solution alludes me now. Can > someone please remind me how to change the default Redhat behavior of > root email being sent from root at server.domain to root at domain. It's > something in sendmail.mc from memory. >From memory, Sendmail will default to user at host if there's no fully qualified domain name for either localhost or the system's 'base' IP address in /etc/hosts. There's probably a more correct Sendmail approach too. Checking /etc/mail/sendmail.mc LOCAL_DOMAIN(`localhost.localdomain')dnl Looks a likely candidate. Will.