sendmail – 服务器发送垃圾邮件？

今天我们发现我们的一台服务器负载非常繁重,通过查看maillog,它发送了大量的服务器到奇怪的电子邮件地址.它看起来像是从我们的服务器发送垃圾邮件.但是,我找不到发送帐户是谁.

如何查找发件人,以便我可以关闭该帐户？

以下是队列中其中一个出站电子邮件的示例：

[root@server11 mqueue]# cat qfp96I9K1r020960
V8
T1317924562
K1318068176
N27
P3934747
I9/3/119387
MDeferred
Fws
$_localhost [127.0.0.1]
$rSMTP
$sUser
${daemon_flags}
${if_addr}127.0.0.1
S
rRFC822; jenners0223@aol.com
RPFD:
rRFC822; jennecho@aol.com
RPFD:
rRFC822; jennebarre@aol.com
RPFD:
rRFC822; jenndum@aol.com
RPFD:
rRFC822; jenncsh@aol.com
RPFD:
MDeferred
rRFC822; jennclemons@cs.com
RPFD:
rRFC822; jennesef@yahoo.com
RPFD:
rRFC822; jennerped@yahoo.com
RPFD:
rRFC822; jenneroutszong@yahoo.com
RPFD:
rRFC822; jennermills@yahoo.com
RPFD:
rRFC822; jennerbeez@yahoo.com
RPFD:
rRFC822; jennerate@yahoo.com
RPFD:
rRFC822; jenner_parker@yahoo.com
RPFD:
rRFC822; jennellsmilie@yahoo.com
RPFD:
rRFC822; jennellehuff@yahoo.com
RPFD:
rRFC822; jennel4eva@yahoo.com
RPFD:
rRFC822; jenneka.gaines@yahoo.com
RPFD:
rRFC822; jennejenkins@yahoo.com
RPFD:
rRFC822; jenneintenn@yahoo.com
RPFD:
rRFC822; jenneekay@yahoo.com
RPFD:
rRFC822; jennean.dickens@yahoo.com
RPFD:
rRFC822; jennduckworth@yahoo.com
RPFD:
rRFC822; jenndooley03@yahoo.com
RPFD:
rRFC822; jenndobscha@yahoo.com
RPFD:
rRFC822; jenndeemartin@yahoo.com
RPFD:
rRFC822; jenndannwill@yahoo.com
RPFD:
rRFC822; jennd926@yahoo.com
RPFD:
rRFC822; jenncummisky@yahoo.com
RPFD:
rRFC822; jenncradduck@yahoo.com
RPFD:
rRFC822; jenncoffin@yahoo.com
RPFD:
rRFC822; jennchrischristopher@yahoo.com
RPFD:
MDeferred
rRFC822; jenncepero@yahoo.com
RPFD:
H?P?Return-Path: 
H??Received: from User (localhost [127.0.0.1])
    by [server name] (8.13.1/8.13.1) with SMTP id p96I9K1r020960;
    Fri,7 Oct 2011 05:09:22 +1100
H?M?Message-Id: 
H??From: "Match.com"
H??Subject: Your Match Account Has Been Hold - Re-Connect Now
H??Date: Thu,6 Oct 2011 11:12:59 -0700
H??MIME-Version: 1.0
H??Content-Type: text/html;
    charset="Windows-1251"
H??Content-Transfer-Encoding: 7bit
H??X-Priority: 3
H??X-MSMail-Priority: Normal
H??X-Mailer: Microsoft Outlook Express 6.00.2600.0000
H??X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000

更新1：

一旦我清理了/ var / spool / mqueue文件夹,它就会很快填满新的垃圾邮件.
一旦我重新启动了sendmail服务,它就会停止填写垃圾邮件,但它会在几个小时后再回来.这表明了什么？谢谢.