求助！自建邮箱系统向国外发邮件报错

xiaolanenya

Failed address: abcd@visa.com

--- Session Transcript ---
Wed 2012-05-02 17:51:46: Parsing message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000386849.msg>
Wed 2012-05-02 17:51:46: *  From: efgh@tungkong.com.cn
Wed 2012-05-02 17:51:46: *  To: abcd@visa.com
Wed 2012-05-02 17:51:46: *  Subject: About Hotel booking
Wed 2012-05-02 17:51:46: *  Size (bytes): 8752
Wed 2012-05-02 17:51:46: *  Message-ID: <027ECCBA0E3A4A5BB263FBBFD5EEE388@201204011708>
Wed 2012-05-02 17:51:46: Attempting SMTP connection to [visa.com]
Wed 2012-05-02 17:51:46: Resolving MX records for [visa.com] (DNS Server: 202.102.152.3)...
Wed 2012-05-02 17:51:46: *  P=010 S=000 D=visa.com TTL=(1368) MX=[portal5.visa.com]
Wed 2012-05-02 17:51:46: *  P=010 S=001 D=visa.com TTL=(1368) MX=[portal1.visa.com]
Wed 2012-05-02 17:51:46: *  P=010 S=002 D=visa.com TTL=(1368) MX=[portal2.visa.com]
Wed 2012-05-02 17:51:46: Attempting SMTP connection to [portal5.visa.com:25]
Wed 2012-05-02 17:51:46: Resolving A record for [portal5.visa.com] (DNS Server: 202.102.152.3)...
Wed 2012-05-02 17:51:47: *  D=portal5.visa.com TTL=(60) A=[198.241.174.138]
Wed 2012-05-02 17:51:47: Attempting SMTP connection to [198.241.174.138:25]
Wed 2012-05-02 17:51:47: Waiting for socket connection...
Wed 2012-05-02 17:51:47: *  Connection established (60.216.2.220:1884 -> 198.241.174.138:25)
Wed 2012-05-02 17:51:47: Waiting for protocol to start...
Wed 2012-05-02 17:51:47: <-- 220 ***************************************************************
Wed 2012-05-02 17:51:47: --> EHLO tungkong.com.cn
Wed 2012-05-02 17:51:48: <-- 250-ESMTP Server Ready
Wed 2012-05-02 17:51:48: <-- 250-SIZE 12582912
Wed 2012-05-02 17:51:48: <-- 250-DSN
Wed 2012-05-02 17:51:48: <-- 250-XXXXXXXA
Wed 2012-05-02 17:51:48: <-- 250 XXB
Wed 2012-05-02 17:51:48: --> MAIL From:<efgh@tungkong.com.cn> SIZE=8752
Wed 2012-05-02 17:51:48: <-- 250 +OK Sender OK
Wed 2012-05-02 17:51:48: --> RCPT To:<abcd@visa.com>
Wed 2012-05-02 17:51:49: <-- 250 +OK Recipient OK
Wed 2012-05-02 17:51:49: --> DATA
Wed 2012-05-02 17:51:49: <-- 354 Start mail input, end with '<CR><LF>.<CR><LF>'
Wed 2012-05-02 17:51:49: Sending <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000386849.msg> to [198.241.174.138]
Wed 2012-05-02 17:51:49: Transfer Complete
Wed 2012-05-02 17:51:50: <-- 554 Transaction Failed Spam Message not queued.
Wed 2012-05-02 17:51:50: --> QUIT
--- End Transcript ---

xiaolanenya

因为对方是国外客户，所以不好交流，对方认定是我方邮件系统有问题，让我们查原因并整改，郁闷！不知道是哪的问题。

xiaolanenya

From: Spam Quarantine Release
Sent: Thursday, March 22, 2012 4:07 PM
To: Ng, Agnes
Subject: Spam Quarantine Release Notification - Thu, 22 Mar 2012 01:07:02 -0700



Please be advised that some email messages sent to you have been tagged as possible spam and have been quarantined. This notification lists your newly quarantined messages.

To release an email from quarantine, simply click on its Message ID.

If you take no action, the messages will automatically be deleted in 4 days.

Message ID
Sender
Subject
Size(Bytes)
Date
Info
Multiple Recipients

143533385
efgh@tungkong.com.cn
Re: re-application as a Visa card vendor - Tungkong
51603
2012-03-21 23:33:10
Anti-Spam
N

以上是3月份发送邮件出现问题后对方发过来的信息，最后是发送的洲际特快，大虾吗？有知道怎么解决的吗