ckmail(1)                DG/UX B2 Security R4.12MU02               ckmail(1)


NAME
       ckmail - check for mailbox at same or dominated MAC label

SYNOPSIS
       ckmail [username]

   where:
       username  The name of the user to check; default = the username
                 associated with the current effective UID

DESCRIPTION
       The ckmail command searches /usr/mail for mail for username, or if
       username is not supplied, for the username associated with the real
       user ID of the invoking process.  ckmail reports all mail found at a
       mandatory access control (MAC) label dominated by the current process
       clearance (MAC label), and readable by the invoker.

EXAMPLES
       $ getmac
       SESSION_LOW:NONE
       $ ckmail
       mail at MAC label SESSION_LOW:NONE

       $ getmac
       SESSION_HI:(ACCOUNTING,ADMINISTRATION)
       $ ckmail
       mail at MAC label SESSION_HIGH:NONE
       mail at MAC label SESSION_LOW:ACCOUNTING
       mail at MAC label SESSION_LOW:ADMINISTRATION
       mail at MAC label SESSION_LOW:NONE

DIAGNOSTICS
       Ckmail writes all diagnostic messages to stderr.  The ckmail command
       exits with one of the following values:

            0    Mail was found for the specified username.

            1    No readable mail was found, or an error occurred.

SEE ALSO
       mail(1).


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