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ezmlm-issubn(1)        DragonFly General Commands Manual       ezmlm-issubn(1)

NAME
       ezmlm-issubn - test to see if an address is subscribed to a mailing
       list

SYNOPSIS
       ezmlm-issubn [ -nN ] dir [ subdir1 ... ]

DESCRIPTION
       ezmlm-issubn checks to see if the address obtained from the environment
       variable SENDER is subscribed to the mailing list stored in dir/subdir1
       or the mailing list in dir/subdir2 or ...

       If SENDER is not defined ezmlm-issubn exits with an error.

       If SENDER is on [any of] the mailing list[s], ezmlm-issubn exits with a
       zero exit code.

       If box@domain is not on the mailing list, ezmlm-issubn exits 99. This
       exit code is non-success from a shell point of view, but to qmail it
       means "success" and skip remaining lines in the .qmail file. Thus, a
       simple way to execute a delivery if the criteria are met is to place
       the ezmlm-issubn line first, followed by the action line(s). If SENDER
       is a subscriber, the action line is executed, if not, the line is
       ignored without the generation of an error condition. To generate a
       fatal error, just:

       |/path/ezmlm-issubn
       dir ...
       || (echo "err msg"; exit 100)

       |/path/action_for_subscribers
       |/path/more_for_subscribers

       ezmlm-issubn exits 100 on permanent and 111 on temporary errors.

OPTIONS
       -n     Negate exit code. Exit 99 if SENDER is a subscriber and exit 0
              if not.  This is useful when trying to exclude SENDERs.

       -N     (Default.)  Normal exit codes: 0 is the address is in any of the
              lists, 99 if not.

NOTES
       The use of ezmlm-issubn is deprecated.  Use ezmlm-checksub instead.

       To maintain backwards compatibility, if dir1 (or more) are present on
       the command line and are all absolute paths, ezmlm-issubn examines each
       of the directories for the sender.  Otherwise, it only examines the
       named subdirectories within dir.

SEE ALSO
       ezmlm-checksub(1), ezmlm-list(1), ezmlm-manage(1), ezmlm-make(1),
       ezmlm-send(1), ezmlm-sub(1), ezmlm-unsub(1), ezmlm(5)

                                                               ezmlm-issubn(1)