Exchange 2010 – 无法发送到特定域 – 421连接由于套接字错误而丢失

我已经看了一些现有的SF问题/答案，到目前为止找不到相同的情况。这不像我第一次想到的那样是TLS问题，因为远程服务器不需要TLS，而且从build立连接开始发送和接收SMTP命令，这不是防火墙问题。

我们在Exchange队列中仅为一个域获取以下内容：

交换队列

远程域是它出现的Exchange 2003服务器。

以下是电子邮件的SMTP日志的副本：

2013-04-12T19:03:20.684Z,Internet,08D004A55169DB35,0,,XX.XX.XX.XX:25,*,,attempting to connect 2013-04-12T19:03:20.731Z,Internet,08D004A55169DB35,1,10.54.2.15:25977,XX.XX.XX.XX:25,+,, 2013-04-12T19:03:20.777Z,Internet,08D004A55169DB35,2,10.54.2.15:25977,XX.XX.XX.XX:25,<,"220 plexch2k3.REMOTE.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Fri, 12 Apr 2013 15:03:20 -0400 ", 2013-04-12T19:03:20.777Z,Internet,08D004A55169DB35,3,10.54.2.15:25977,XX.XX.XX.XX:25,>,EHLO exchange.OURDOMAIN.com, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,4,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-plexch2k3.REMOTE.com Hello [6X.XX.X.70], 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,5,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-TURN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,6,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-SIZE, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,7,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-ETRN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,8,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-PIPELINING, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,9,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-DSN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,10,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-ENHANCEDSTATUSCODES, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,11,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-8bitmime, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,12,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-BINARYMIME, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,13,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-CHUNKING, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,14,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-VRFY, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,15,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-X-EXPS GSSAPI NTLM LOGIN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,16,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-X-EXPS=LOGIN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,17,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-AUTH GSSAPI NTLM LOGIN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,18,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-AUTH=LOGIN, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,19,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-X-LINK2STATE, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,20,10.54.2.15:25977,XX.XX.XX.XX:25,<,250-XEXCH50, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,21,10.54.2.15:25977,XX.XX.XX.XX:25,<,250 OK, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,22,10.54.2.15:25977,XX.XX.XX.XX:25,*,5945,sending message 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,23,10.54.2.15:25977,XX.XX.XX.XX:25,>,MAIL FROM:<[email protected]> SIZE=13577, 2013-04-12T19:03:20.824Z,Internet,08D004A55169DB35,24,10.54.2.15:25977,XX.XX.XX.XX:25,>,RCPT TO:<[email protected]>, 2013-04-12T19:03:20.871Z,Internet,08D004A55169DB35,25,10.54.2.15:25977,XX.XX.XX.XX:25,<,250 2.1.0 [email protected] OK, 2013-04-12T19:03:20.949Z,Internet,08D004A55169DB35,26,10.54.2.15:25977,XX.XX.XX.XX:25,-,,Remote

我似乎无法弄清楚问题所在。看起来它可能是在远端：

 250 2.1.0 [email protected] OK,

然后它说：

 ,,Remote

不pipe是什么意思，然后这就是日志和连接的结束。

任何想法如何解决这一个？

plexch2k3.parkerlabs.com在拒绝RCPT TO:之后closuresTCP会话。这似乎是“混淆”你的MTA。

我的testingtelnet连接产生：
550 5.7.1 Your email messages have been blocked by the recipient OR by Trend Micro Email Reputation Service. Contact the recipient or his/her administrator using alternate means to resolve the issue. Connection closed by foreign host.