To support a read-only /usr file system, the contents of the /usr/lib/mail directory has been moved to the /etc/mail/cf directory. For details, refer to Contents of the /etc/mail/cf Directory. Note, however, that the shell scripts /usr/lib/mail/sh/check-hostname and /usr/lib/mail/sh/check-permissions are now in the /usr/sbin directory. See Other Files Used for Mail Services. For backward compatibility, symbolic links point to each file's new location.
The new name for /usr/lib/mail/cf/main-v7sun.mc is /etc/mail/cf/cf/main.mc.
The new name for /usr/lib/mail/cf/subsidiary-v7sun.mc is /etc/mail/cf/cf/subsidiary.mc.
The helpfile is now located in /etc/mail/helpfile. The old name (/etc/mail/sendmail.hf) has a symbolic link that points to the new name.
The trusted-users file is now located in /etc/mail/trusted-users. During an upgrade, if the old name (/etc/mail/sendmail.ct) is detected, but not the new name, a hard link from the old name to the new name is created. Otherwise, no change is made. The default content is root.
The local-host-names file is now located in /etc/mail/local-host-names. During an upgrade, if the old name (/etc/mail/sendmail.cw) is detected, but not the new name, a hard link from the old name to the new name is created. Otherwise, no change is made. The default content is zero length.