1 CHECKMAIL
!
The CHECKMAIL utility checks whether another user has read MAIL messages
which you have sent.

If a user is forwarding MAIL to another user, CHECKMAIL will indicate this,
but will not check whether the other user has read your messages.

You can disable other users from using CHECKMAIL on you; read the information
in subtopic PERMISSION.
!
2 Parameter
!
  All CHECKMAIL qualifiers must be placed immediately after the CHECKMAIL
  verb, and before any parameters.

  The parameter to CHECKMAIL can be one or more of the following elements,
  separated by commas:

    **  Usernames  (example:  USERA,USERB )

    **  MAIL Distribution lists, preceded by "@", with .DIS as the default
        file type  (example:  @A.DIS,@B )

    **  Logical names which translate to either of the above, or which
        translate to a comma-separated list of any of the above.
        example:
                  $ DEFINE BOSS USER1
                  $ DEFINE PEONS "@DISTRO"
                  $ DEFINE GROUP "BOSS,PEONS"
                  $ DEFINE REST "USER2,USER3,@WORLD"
                  $ CHECKMAIL GROUP,REST
!
2 Permission
!
By default, any user can check whether you have read mail which they sent
to you.

Users cannot do third-party checking; i.e. user A cannot check whether
you have read a message sent to you by user B.

You have the option of disabling the use of CHECKMAIL by other users to
check your messages from them.  To do this:

  1. Find your MAIL directory.  In most cases this is subdirectory
     [.MAIL] under your main directory.  In some cases your main
     directory is also your MAIL directory.  There will be a file
     MAIL.MAI in your MAIL directory.

  2. In your MAIL directory, create a file named CHECKMAIL.DISABLE.
     This can be an empty file.

Later, if you decide you do want to allow other users to use CHECKMAIL
on your messages, delete the file CHECKMAIL.DISABLE.

If you have disabled CHECKMAIL, whenever someone attempts to use it
on your messages, they will get no response.
!
2 Example
!
    Assume files A.DIS, B.DIS, and C.DIS are MAIL distribution lists.

        $  DEFINE  ALL_USERS  "@A.DIS"

        $  DEFINE  MY_GROUP  "BOSS,@B"  ! .DIS is the default file type

        $  CHECKMAIL USER1,USER2,ALL_USERS,MY_GROUP,@C

        ----- USER1's unread messages from SYSTEM -----

        20-MAR-1992 12:07  Meeting This Afternoon
        20-MAR-1992 12:45  Re: Your Suggestion

          USER2 has no unread messages from SYSTEM

          USER3 has forwarding set to NODEX::USER3

        ----- USER4's unread messages from SYSTEM -----

        20-MAR-1992 12:07  Meeting This Afternoon
        . . . . .

2 Qualifiers
!
/OUTPUT

  All CHECKMAIL qualifiers must be placed immediately after the CHECKMAIL
  verb, and before any parameters.

  If /OUTPUT=file_name is specified, CHECKMAIL will write its output to
  the specified file.  By default, CHECKMAIL writes to SYS$OUTPUT, which
  is normally your terminal screen.

/FULL

  All CHECKMAIL qualifiers must be placed immediately after the CHECKMAIL
  verb, and before any parameters.

  /FULL is the default.  CHECKMAIL's output will show, for each unread
  message, the date and time of the message, and the subject of the
  message.

  /FULL and /BRIEF are mutually exclusive qualifiers.

/BRIEF

  All CHECKMAIL qualifiers must be placed immediately after the CHECKMAIL
  verb, and before any parameters.

  /FULL is the default.  If /BRIEF is specified, CHECKMAIL will show the
  number of unread messages, not a description of each message.

  /FULL and /BRIEF are mutually exclusive qualifiers.

