I think my server may be sending spam mail

[LAM09]

HI, I wonder if anyone can help?

SUSPECT EMAIL FOUND IN MAIL QUEUE - IT SEEMS TO HAVE TRIED TO SEND FROM MY SERVER - IS THAT RIGHT?

Received: from MYVPS.MYvps.co.uk (unknown [127.0.0.1])
by MYVPS.MYvps.co.uk (Postfix) with ESMTP id 65D3E2018017
for <[email protected]>; Mon, 17 Jan 2011 15:34:47 +0000 (UTC)
Received: by MYVPS.MYvps.co.uk (Postfix, from userid 100)
id 536172018015; Mon, 17 Jan 2011 15:34:47 +0000 (UTC)
From: "DrWeb-DAEMON" <[email protected]>
To: [email protected]
Subject: Undelivered mail: CHAEP CILIAS!!!
Content-Type: multipart/mixed;
boundary="001-DrWeb-MailFilter-Notification"
MIME-Version: 1.0
Precedence: junk
X-Antivirus-Ticket: DrWeb notification.
Message-Id: <[email protected]>
Date: Mon, 17 Jan 2011 15:34:47 +0000 (GMT)

SO I RAN A SCAN AND GOT A FEW WARNINGS BUT NOTHING SIGNIFICANT (E.G.)
/usr/bin/GET [ Warning ]
/sbin/ifdown [ Warning ]
/sbin/ifup [ Warning ]

Performing trojan specific checks
Checking for enabled xinetd services [ Warning ]

Q: HOW DO I STOP PEOPLE SENDING FROM MY SERVER?

 

[fogelf]

Someone sends email with virus for your mailaccount. Drweb check virus and block email delivery. In additional it send notification for plesk admin [email protected]