yes ,you are right ,thank you very much
i see the log in mysql log like this 

2851 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: password 
fail (pass: '12345') webmast... 1168331134 3 
      2852 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168342700 3 
      2853 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168342708 3 
      2854 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168344724 3 
      2855 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168344732 3 
      2856 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168346732 3 
      2857 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168346745 3 
      2858 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168348947 3 
      2859 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168348956 3 
      2860 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168351121 3 
      2861 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168351130 3 
      2862 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168353178 3 
      2863 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168353187 3 
      2864 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168355243 3 
      2865 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168355251 3 
      2866 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168357372 3 
      2867 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168357381 3 
      2868 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 1168359395 3 
      2869 webmaster 12345 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '12345') webmast... 1168359404 3 
      2870 webmaster 123456 sve-tech.com webmaster 59.40.27.78 vchkpw-smtp: 
password fail (pass: '123456') webmas... 11683612

now i change the passwd of webmaster ,i think the problem will be OK now
----- Original Message ----- 
From: "Matthew Walker" <[EMAIL PROTECTED]>
To: <toaster@shupp.org>
Sent: Wednesday, January 10, 2007 12:13 AM
Subject: Re: [toaster] Problem with an open relay


> 
> On Tue, January 9, 2007 4:44 am, [EMAIL PROTECTED] wrote:
>> but we see message header ,we can see any valid username  ,but we see the
>> From HEADER is ""168.1.49.97dgrrtgr" <>" and no  [EMAIL PROTECTED]"""""
>>
>>
>> Return-Path: <>
>> Received: (qmail 10514 invoked by uid 89); 8 Jan 2007 01:04:33 -0000
>> Received: by simscan 1.2.0 ppid: 10447, pid: 10511, t: 0.2801s
>>          scanners: attach: 1.2.0 clamav: 0.88.7/m:41/d:2352
>> Received: from unknown (HELO winxp) ([EMAIL PROTECTED])
>>   by 0 with ESMTPA; 8 Jan 2007 01:04:33 -0000
>> From: "168.1.49.97dgrrtgr" <>
>> Subject: =?GB2312?B?yeixuM6s0N653MDt?=
>> To: [EMAIL PROTECTED]
>> Content-Type: text/plain
>> MIME-Version: 1.0
>> Content-Transfer-Encoding: base64
>> Date: Mon, 8 Jan 2007 09:08:40 +0800
>>
> 
> Headers are NOT reliable. Once a client has authenticated with a valid
> username and password, they can say whatever they want about who they are
> for the rest of the conversation.
> 
> Seriously, you have a compromised account, or a user who is intentionally
> spamming through your server. Shut them down.
> 
> -- 
> Matthew Walker
> Kydance Hosting & Consulting
> LAMP Specialist
>

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