This file is indexed.

/usr/lib/courier/pop3d is in courier-pop 0.66.1-1ubuntu4.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#! /bin/bash
#
# Copyright 1998 - 2005 Double Precision, Inc.  See COPYING for
# distribution information.
#
# Sample script to start Courier's pop3 daemon.
#
# This script should work for most systems.  Authenticate via the PAM library,
# /etc/shadow, or fallback to /etc/passwd
#
# You must run this as root, and as a daemon process.
#

prefix="/usr"
exec_prefix="/usr"
sysconfdir="/etc/courier"
sbindir="${exec_prefix}/sbin"
bindir="/usr/bin"
libexecdir="${prefix}/lib/courier"

if test ! -f ${sysconfdir}/pop3d
then
	echo "${sysconfdir}/pop3d does not exist, forgot make install-configure?"
	exit 1
fi

if test ! -f ${sysconfdir}/pop3d-ssl
then
	echo "${sysconfdir}/pop3d-ssl does not exist, forgot make install-configure?"
	exit 1
fi

. ${sysconfdir}/pop3d-ssl
. ${sysconfdir}/pop3d

export PATH
export SHELL

case "$1" in
start)
	;;
stop)
	/usr/sbin/courierlogger -pid=$PIDFILE -stop
	exit 0
	;;
restart)
	/usr/sbin/courierlogger -pid=$PIDFILE -restart
	exit 0
	;;
*)
	exit 0
	;;
esac

cd /usr

/usr/bin/env -i /bin/bash -c " set -a; \
		prefix=/usr ; \
		exec_prefix=/usr ; \
		sbindir=${exec_prefix}/sbin ; \
		bindir=/usr/bin ; \
		libexecdir=${prefix}/lib/courier ; \
		. /etc/courier/pop3d ; \
		. /etc/courier/pop3d-ssl ; \
	TLS_PROTOCOL=$TLS_STARTTLS_PROTOCOL ; \
	PROXY_HOSTNAME=$PROXY_HOSTNAME ; \
	/usr/sbin/courierlogger -pid=$PIDFILE -start $LOGGEROPTS \
	${exec_prefix}/sbin/couriertcpd -address=$ADDRESS \
		-maxprocs=$MAXDAEMONS -maxperip=$MAXPERIP \
		$TCPDOPTS \
		$PORT ${prefix}/lib/courier/courier/courierpop3login \
			${prefix}/lib/courier/courier/courierpop3d ${MAILDIRPATH}"