> It really emphasizes the unix philosophy (...) Hmmmm... The real unix philosophy-consistent mail client would be a filesystem that you mount. To send a mail

> It really emphasizes the unix philosophy (...) Hmmmm... The real unix philosophy-consistent mail client would be a filesystem that you mount. To send a mail you copy a file to the folder mail/send, to view your mail you ls mail/inbox, etc. You can browse your mail archive by date or by other criteria by accessing the appropriate directories.