先谢谢了.请指点一把
两台连接公网的AS4+sendmail,用域名向对方收发邮件正常，即
1. 在aaa.com.cn上向bbb.com.cn发邮件成功，bbb.com.cn也可成功接收
[aaa]#mail
test@bbb.com.cn
2. 在bbb.com.cn上向aaa.com.cn发邮件成功，aaa.com.cn也可成功接收
[bbb]#mail
test@aaa.com.cn
但是,若将上述邮箱地址中的域名换为IP地址,则两机向对方发送邮件都失败,即
1. 在aaa.com.cn上向bbb.com.cn的对应IP地址发送邮件失败.
[aaa]#mail test@[218.76.51.2] -----bbb.com.cn的IP
2.在bbb.com.cn上向aaa.com.cn的对应IP地址发送邮件也失败.
[bbb]#mail test@[218.76.51.1] -----aaa.com.cn的IP
IP地址前后不加[ ]也不行.双方ping 对方IP都能ping 通,双方防火墙均已关闭,双方的/etc/mail/local-host-name文件中都已加入了自己的ip地址(也试过不加),双方的access.db中都已加入对方的IP并允许RELAY(也试过不加).
以下是其中一方发送邮件后的失败信息,我已用[]指定了用IP地址发送邮件,为什么还会用DNS解析并出现MX problem呢?
Mail version 8.1 6/6/93. Type ? for help.
"/var/spool/mail/root": 1 message 1 new
>N 1 MAILER-DAEMON@localh Fri Dec 9 22:30 64/2377 "Returned mail: see tr"
& Message 1:
From
MAILER-DAEMON@localhost.localdomain Fri Dec 9 22:30:32 2005
Date: Fri, 9 Dec 2005 22:30:32 -0500
From: Mail Delivery Subsystem <MAILER-DAEMON@localhost.localdomain>
To:
postmaster@localhost.localdomain
To: <root@localhost.localdomain>
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="jBA3UWk0002972.1134185432/localhost.localdomain"
Subject: Returned mail: see transcript for details
Auto-Submitted: auto-generated (failure)
This is a MIME-encapsulated message
--jBA3UWk0002972.1134185432/localhost.localdomain
The original message was received at Fri, 9 Dec 2005 22:30:31 -0500
from localhost.localdomain [127.0.0.1]
----- The following addresses had permanent fatal errors -----
<test@[218.76.51.1]>
(reason: 553 5.3.5 system config error)
----- Transcript of session follows -----
553 5.3.5 [218.76.51.1] config error: mail loops back to me (MX problem?)
554 5.3.5 Local configuration error
--jBA3UWk0002972.1134185432/localhost.localdomain
Content-Type: message/delivery-status
Reporting-MTA: dns; localhost.localdomain
Received-From-MTA: DNS; localhost.localdomain
Arrival-Date: Fri, 9 Dec 2005 22:30:31 -0500
Final-Recipient: RFC822; test@[218.76.51.1]
Action: failed
Status: 5.3.5
Diagnostic-Code: SMTP; 553 5.3.5 system config error
Last-Attempt-Date: Fri, 9 Dec 2005 22:30:32 -0500
--jBA3UWk0002972.1134185432/localhost.localdomain
Content-Type: message/rfc822
Return-Path: <root@localhost.localdomain>
Received: from localhost.localdomain (localhost.localdomain [127.0.0.1])
by localhost.localdomain (8.13.1/8.13.1) with ESMTP id jBA3UVk0002970
for <test@[218.76.51.1]>; Fri, 9 Dec 2005 22:30:31 -0500
Received: (from root@localhost)
by localhost.localdomain (8.13.1/8.13.1/Submit) id jBA3UVRI002969
for test@[218.76.51.1]; Fri, 9 Dec 2005 22:30:31 -0500
Date: Fri, 9 Dec 2005 22:30:31 -0500
From: root <root@localhost.localdomain>
Message-Id: <200512100330.jBA3UVRI002969@localhost.localdomain>
To: test@[218.76.51.1]
Subject: &&&&&&&&&&&&&
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
--jBA3UWk0002972.1134185432/localhost.localdomain--
&
