Delivery Status Notification (Failure)

Delivery to the following recipient failed permanently:

root@server-asasha.net

Technical details of permanent failure:
DNS Error: Address resolution of server-asasha.net. failed: Domain name not found

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From: Cron Daemon <4sumy4@gmail.com>
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for root@server-asasha.net; Fri, 01 Jan 2016 11:54:01 +0200
To: root@server-asasha.net
Subject: Cron <root@debian-7-5> ntpdate 0.ua.pool.ntp.org
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X-Cron-Env: <SHELL=/bin/sh>
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Message-Id: <E1aEwPJ-0003mj-FX@debian-7-5>
Date: Fri, 01 Jan 2016 11:54:01 +0200

/bin/sh: 1: ntpdate: not found