There is speculation that /var/spool/mail has remained the "real" standard for Linux despite what FHS 2.0 says.
If you are a Linux developer/distribution/company/etc. currently using /var/mail (as specified in FHS 2.0) instead of /var/spool/mail, please let me know. I think glibc 2.1 has made the change to _PATH_MAILDIR in paths.h, but that's all I know about. If nobody is using it, we can consider changing it back. If not, then we'll just specifically allow a symbolic link at /var/mail to point to the real spool directory (or something like that). - Dan
