UNIX系统下的sendmail问题，烦请高手帮忙解答一下

[root@eip1 mqueue]# ls
dfs4N18HEt010304 dfs4N1h1GC010525 dfs4N1hV6A010532 dfs4N1is7h010553 qfs4N1cDxj010504 qfs4N1huA1010541 qfs4N1iP6O010548
dfs4N1cDxj010504 dfs4N1huA1010541 dfs4N1iP6O010548 qfs4N18HEt010304 qfs4N1h1GC010525 qfs4N1hV6A010532 qfs4N1is7h010553
[root@eip1 mqueue]# cat dfs4N1huA1010541
This is a MIME-encapsulated message
--s4N1huA1010541.1400809436/localhost.localdomain
The original message was received at Fri, 23 May 2014 09:43:25 +0800
from eip1 [127.0.0.1]
----- The following addresses had permanent fatal errors -----
<xing.li@bonito-shoes.com>
----- Transcript of session follows -----
550 5.1.2 <xing.li@bonito-shoes.com>... Host unknown (Name server: bonito-shoes.com: no data known)
--s4N1huA1010541.1400809436/localhost.localdomain
Content-Type: message/delivery-status
Reporting-MTA: dns; localhost.localdomain
Received-From-MTA: DNS; eip1
Arrival-Date: Fri, 23 May 2014 09:43:25 +0800
Final-Recipient: RFC822; xing.li@bonito-shoes.com
Action: failed
Status: 5.1.2
Remote-MTA: DNS; bonito-shoes.com
Last-Attempt-Date: Fri, 23 May 2014 09:43:25 +0800
--s4N1huA1010541.1400809436/localhost.localdomain
Content-Type: message/rfc822
Return-Path: <eip@bonito.cn>
Received: from eip1 (eip1 [127.0.0.1])
by localhost.localdomain (8.13.8/8.13.8) with ESMTP id s4N1gvA1010533
for <xing.li@bonito-shoes.com>; Fri, 23 May 2014 09:43:25 +0800
Date: Fri, 23 May 2014 09:42:57 +0800 (CST)
From: eip@bonito.cn
To: xing.li@bonito-shoes.com
Message-ID: <15536577.138.1400809377761.JavaMail.root@eip1>
Subject: [bonito_BP:192.168.100.111] EIP BP ap occurs some errors! Please
check them!
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="----=_Part_137_22500980.1400809377761"
------=_Part_137_22500980.1400809377761
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Log4J Log Messages</title>
<style type="text/css">
<!--
body, table {font-family: arial,sans-serif; font-size: x-small;}
th {background: #336699; color: #FFFFFF; text-align: left;}

------=_Part_137_22500980.1400809377761--
--s4N1huA1010541.1400809436/localhost.localdomain--