http://www.fmi.uni-passau.de/archive/doc/unix/unixhelp/Unixhelp/mail_5.3.2.2.html (Einblicke ins Internet, ~06/1995)
Reading mail stored in other files
Reading mail stored in other files
You can save mail messages in files that are located
anywhere in your personal file system.
To read files stored in these files, start the mail
program with the command:
mail -f filename