failure notice

Hi. This is the qmail-send program at x28.cocospace.com.
I tried to deliver a bounce message to this address, but the bounce bounced!

<anonymous@x28.cocospace.com>:
Sorry, no mailbox here by that name.

--- Below this line is the original bounce.

Return-Path: <>
Received: (qmail 7085 invoked for bounce); 21 Feb 2016 21:43:43 +0900
Date: 21 Feb 2016 21:43:43 +0900
From: MAILER-DAEMON@x28.cocospace.com
To: anonymous@x28.cocospace.com
Subject: failure notice

Hi. This is the qmail-send program at x28.cocospace.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<root@x28.cocospace.com>:
Sorry, no mailbox here by that name.

--- Below this line is a copy of the message.

Return-Path: <anonymous@x28.cocospace.com>
Received: (qmail 25544 invoked by uid 0); 21 Feb 2016 18:35:01 +0900
Date: 21 Feb 2016 18:35:01 +0900
Message-ID: <20160221093501.25542.qmail@x28.cocospace.com>
From: root@x28.cocospace.com (Cron Daemon)
To: root@x28.cocospace.com
Subject: Cron <root@nn35> /usr/share/vzctl/scripts/vpsnetclean
Content-Type: text/plain; charset=UTF-8
Auto-Submitted: auto-generated
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>

/bin/sh: /usr/share/vzctl/scripts/vpsnetclean: No such file or directory