Salve ho appena installato un server php in locale su un sistema ubuntu, ho installato come programma per inviare email ssmtp credo, e l'ho configurato per inviare email da un account di posta di gmail xxx-miaemail-xxx@gmail.com il problema è che adesso il sistema in automatico tenta di inviare ogni dieci minuti queste email come posso risolvere?

codice:
Delivery to the following recipient failed permanently:

    root@vincenzo

Technical details of permanent failure:
DNS Error: Domain name not found

----- Original message -----

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
       d=gmail.com; s=20120113;
       h=message-id:date:from:to:subject:content-type:x-cron-env:x-cron-env
        :x-cron-env:x-cron-env;
       bh=BdAqjHkG9j/6DmLN8lPskjPGuG6VQx3jM3XJuM3ufXo=;
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        xDhk/FG/7nSDbpA9bWvF1iEslvzlSQCBvBm44WL9UDf1rZu4+Ma6bRrQJ+wDPwCkWVrO
        DVDrqIG7nNHeN2nhxEjXxYpab7EtD+Sbzy1YxfWBCmZhtS0s+iE5Kz3OHILidZd7bSD1
        Hny8o7sgadbCqtZfT6jcFlpB6YtHzOUthPOxvPgzhcLuvLWc9/EGduTOdaEqMfkbBwNK
        YpVw+eujWRQDxeZ2hT8ChqdhYGAD6d9jbF6Sn3GWsfaViJUlWqBeF8juJXQ9fBPODeOf
        8NuQ==
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Return-Path: <xxxx-mioindirizzo-xxx@gmail.com>
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Received: by vincenzo (sSMTP sendmail emulation); Thu, 29 Mar 2012 21:39:05 +0200
Date: Thu, 29 Mar 2012 21:39:05 +0200
From: root <xxxx-mioindirizzo-xxx@gmail.com>
To: root
Subject: Cron <root@vincenzo>   [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm
Content-Type: text/plain; charset=ANSI_X3.4-1968
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>



PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/msql.so' - /usr/lib/php5/20090626+lfs/msql.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/sqlite.so' - /usr/lib/php5/20090626+lfs/sqlite.so: undefined symbol: php_pdo_register_driver in Unknown on line 0



Delivery to the following recipient failed permanently:

    root@vincenzo

Technical details of permanent failure:
DNS Error: Domain name not found

----- Original message -----

DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
       d=gmail.com; s=20120113;
       h=message-id:date:from:to:subject:content-type:x-cron-env:x-cron-env
        :x-cron-env:x-cron-env:x-cron-env;
       bh=TirTnXnseAQQl34zrWsra5EQ/BbsnvO8Czn0rT3rkrY=;
       b=GawJsOxNBImKFOKdjOiv2A9LTFHJG446OO5A9iGkYDJfB76yoqRNSpJQY+URh5SN0i
        YzO+fwRg2kPZGp/asNJcv1GHaI+IabUbOk2tlOFOzHw3aKaKxUB1oQHKo52KgrXp1/NZ
        B/LeqM6ab5nWUHTtfnUo1mdG+NRo+1qBmqZRfi4n+/jO6+92FuWwsmk9UA+DXvxZObJl
        7kuDXaI7i/25LyDIukVk3y6yJ8xUhGe9pjCxYYO/bM8PCXTnES0eiHnSN3ohH98Kkb+i
        bQK+pTpRDD29gs8n7rzeGVszSQAnFgppO64o/xq2RjshPWTlUmk3wc7HZQK2eN83ICX6
        mAhw==
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Return-Path: <xxxx-mioindirizzo-xxx@gmail.com>
Received: from vincenzo (host179-133-dynamic.59-82-r.retail.telecomitalia.it. [82.59.133.179])
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       (version=TLSv1/SSLv3 cipher=OTHER);
       Thu, 29 Mar 2012 12:40:05 -0700 (PDT)
Message-ID: <4f74ba95.c652b40a.5727.585b@mx.google.com>
Received: by vincenzo (sSMTP sendmail emulation); Thu, 29 Mar 2012 21:40:01 +0200
Date: Thu, 29 Mar 2012 21:40:01 +0200
From: root <xxxx-mioindirizzo-xxx@gmail.com>
To: root
Subject: Cron <smmsp@vincenzo> test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp
Content-Type: text/plain; charset=ANSI_X3.4-1968
X-Cron-Env: <MAILTO=root>
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/var/lib/sendmail>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=smmsp>



/usr/share/sendmail/sendmail: 1267: /usr/sbin/sendmail-msp: not found