Copyright (c) 1980 Regents of the University of California.
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@(#)mail.4 4.1 (Berkeley) 05/15/85

C 4 mail - pseudo-device for mail notification The file /dev/mail is a multiplexor file maintained by the mail notification daemon. When a piece of mail is delivered the mail delivery process writes information on this file and the mail notification daemon /etc/comsat notifies a user of the arrival of the mail if the user desires to be notified. biff(1) /dev/mail