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Exchange 2010 未接收某些电子邮件

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Exchange 2010 未接收某些电子邮件

Exchange 2010 未接收某些发件人的电子邮件。他们收到以下电子邮件拒绝消息：

管理员的诊断信息：生成服务器：mail.domain.com.au [电子邮件保护]#< #4.4.7> #SMTP#

我在接收连接器上启用了协议日志记录。我没有看到任何错误，但是问题电子邮件似乎被缩短了，最后一个日志条目是“250 CHUNKING”（没有数据日志条目）。

2014-10-03T05:09:45.554Z,MAIL\Receive Connector,08D1ACCDF829605D,0,192.168.0.4:25,123.456.789.123:44347,+,,
2014-10-03T05:09:45.554Z,MAIL\Receive Connector,08D1ACCDF829605D,1,192.168.0.4:25,123.456.789.123:44347,*,SMTPSubmit SMTPAcceptAnySender SMTPAcceptAuthoritativeDomainSender AcceptRoutingHeaders,Set Session Permissions
2014-10-03T05:09:45.555Z,MAIL\Receive Connector,08D1ACCDF829605D,2,192.168.0.4:25,123.456.789.123:44347,>,"220 mail.otherdomain.com.au Microsoft ESMTP MAIL Service ready at Fri, 3 Oct 2014 15:09:45 +1000",
2014-10-03T05:09:45.574Z,MAIL\Receive Connector,08D1ACCDF829605D,3,192.168.0.4:25,123.456.789.123:44347,<,EHLO mail.domain.com.au,
2014-10-03T05:09:45.574Z,MAIL\Receive Connectorl,08D1ACCDF829605D,4,192.168.0.4:25,123.456.789.123:44347,>,250-mail.otherdomain.com.au Hello [123.456.789.123],
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,5,192.168.0.4:25,123.456.789.123:44347,>,250-SIZE 10485760,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,6,192.168.0.4:25,123.456.789.123:44347,>,250-PIPELINING,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,7,192.168.0.4:25,123.456.789.123:44347,>,250-DSN,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,8,192.168.0.4:25,123.456.789.123:44347,>,250-ENHANCEDSTATUSCODES,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,9,192.168.0.4:25,123.456.789.123:44347,>,250-STARTTLS,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,10,192.168.0.4:25,123.456.789.123:44347,>,250-AUTH,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,11,192.168.0.4:25,123.456.789.123:44347,>,250-8BITMIME,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,12,192.168.0.4:25,123.456.789.123:44347,>,250-BINARYMIME,
2014-10-03T05:09:45.575Z,MAIL\Receive Connector,08D1ACCDF829605D,13,192.168.0.4:25,123.456.789.123:44347,>,250 CHUNKING,

从发送邮件服务器对端口 25 进行 Telnet 测试失去连接。

telnet 端口 25 与主机的连接丢失

答案1

我实际上只是通过将入站 SMTP 移至不同的互联网连接并配合 ISP 设置反向 DNS 来解决了这个问题。

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