帮忙分析一下发往外部邮件的退信(163.sina.yahoo,hotmail)

kilyyan2191

目前可以接收外部邮件。
但是不可以发送外部邮件。
服务器的25和110端口均已映射出去。
不管客户端用web方式发送还是outlook发送，均会接收到下列退信。


The attached message had transient non-fatal delivery errors

THIS IS A WARNING MESSAGE ONLY - YOU DO NOT NEED TO RESEND YOUR MESSAGE!

This server is configured to automatically retry delivery at configured
intervals.  Subsequent attempts to deliver this message are pending.

Failed address: kilyyan2191@163.com

--- Session Transcript ---
Sun 2011-05-15 18:30:32: Parsing Message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000137189.msg>
Sun 2011-05-15 18:30:32: From: lilinlin@ipedo.com.cn
Sun 2011-05-15 18:30:32: To: kilyyan2191@163.com
Sun 2011-05-15 18:30:32: Subject: =?gb2312?B?1Nm0zrLiytQ=?=!
Sun 2011-05-15 18:30:32: Message-ID: <WorldClient-F201105151809.AA09150003@ipedo.com.cn>
Sun 2011-05-15 18:30:32: MX-record resolution of [163.com] in progress (DNS Server: 202.96.209.133)...
Sun 2011-05-15 18:30:52: *  Error: 20 second wait for DNS response exceeded (attempt 1 of 5).
Sun 2011-05-15 18:30:52: MX-record resolution of [163.com] in progress (DNS Server: 202.96.209.6)...
Sun 2011-05-15 18:30:52: The name server refuses to honor queries from this location
Sun 2011-05-15 18:30:52: Attempting SMTP connection to [163.com : 25]
Sun 2011-05-15 18:30:52: A-record resolution of [163.com] in progress (DNS Server: 202.96.209.6)...
Sun 2011-05-15 18:30:52: The name server refuses to honor queries from this location
Sun 2011-05-15 18:30:52: This message is 21 minutes old; it has 0 minutes left in this queue
Sun 2011-05-15 18:30:52: Primary queue lifetime exceeded; message placed in retry queue
--- End Transcript ---
: Message contains [1] file attachments

山坛兄弟

是你们上海的DNS的故障，建议你将备用的DNS设置为GOOGLE的8.8.8.8,最近我们广东的主DNS也是总是故障，发邮件的时候总是提示DNS LOOKUP FAILED，换一个DNS即可！