When using sendmail to generate sendmail.cf, the generated file refers to some files in /var/tmp/linuxconf-root: **************************************************************** # This file is built out of files in /usr/lib/linuxconf/mailconf # If you want to do manual modifications to one file # do not modify files in /var/tmp/linuxconf-root/usr/lib/linuxconf/mailconf, instead # ****************************************************************
Fixed in Red Hat Linux 7, as it no longer tries to create sendmail.cf files.