I do not know which field to touch offhand. These are instructions for compiling and restarting sendmail. sendmail.mc has some documentation in it.
End Edit 1:
Usually, sendmail.mc is found in /etc/mail.
As root in /etc/mail
# cp sendmail.mc sendmail.mc.working
# cp sendmail.cf sendmail.cf.working
# m4 sendmail.mc > sendmail.cf
# /etc/init.d/sendmail restart (Debian)
# /etc/rc.d/init.d/sendmail restart (Red Hat)
You'll need some good online documentation for this or "the bat" book, that huge book of O'Reilly's.
to provide our full email domain name when sendmail is sent off our Linux servers. However, this does not cover your original question. Sorry.
Last edited by cmnorton; 08-14-2008 at 12:56 PM.
Reason: Add info; add some more info