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公司内有一台Exchange 2003 server,无固定域名,无固定ip,通过Cisco路由器ADSL拨号上网,无防火墙。之前(已经使用半年)一直工作正常。春节前,停过一次电,重新启动后,所有的Exchange服务都正常,向外发邮件也可以,但发现出现向某些域无法发送邮件的问题(现在发现向sina.com和另一个域xxx.com)无法发送邮件,其中xxx.com 为公司在ISP申请的合法域名,并通过ISP申请了企业邮箱。新浪暂时可以不管,但一定要解决发向xxx.com的邮件问题,已经进行过如下测试:<br>
telnet xx.xxx.com 25<br>
220 ok! welcome to xxx postoffice.<br>
ehlo<br>
250-StormMail ESMTP service ready<br>
250-AUTH LOGIN<br>
250-SIZE 15728640<br>
250 Ok<br>
mail from: xx@xxx.com<br>
<font color="red">530 Authentication required</font><br>
mai from: xx@abc.com<br>
<font color="blue">250 ok</font><br>
发现当以一个非xxx.com的用户发送邮件时,是没有问题的。但是,如果发件人是@xxx.com,就会出现日志记录的错误.见下面:<br>
<br>
Event Type: Error<br>
Event Source: MSExchangeTransport<br>
Event Category: SMTP Protocol <br>
Event ID: 7004<br>
Date: 2/3/2005<br>
Time: 3:14:36 PM<br>
User: N/A<br>
Computer: xxx<br>
Description:<br>
This is an SMTP protocol error log for virtual server ID 1, connection #3. The remote host "210.51.172.172", responded to the SMTP command "mail" with "530 Authentication required ". The full command sent was "MAIL FROM:<xx@xxx.com> SIZE=830 ". This will probably cause the connection to fail. <br>
<br>
<br>
Event Type: Warning<br>
Event Source: MSExchangeTransport<br>
Event Category: NDR <br>
Event ID: 3022<br>
Date: 2/3/2005<br>
Time: 3:14:36 PM<br>
User: N/A<br>
Computer: xxx<br>
Description:<br>
A non-delivery report with a status code of 5.5.0 was generated for recipient rfc822;xx@xxx.com (Message-ID <42C29B1F2AC28A46A6A2479F3ADBB103065D0D@xx.xxx.com>). <br>
Cause: This message indicates a generic protocol error (SMTP error). For example, the remote SMTP responds to an issued EHLO with a 500 level error and the sending system will QUIT the connection and report this with NDR indicating the remote SMTP server can苩 handle the protocol. <br>
Solution: View the SMTP log or run a netmon trace to see why the remote SMTP server rejects the protocol request.<br>
<br>
已经同ISP多次沟通过,他们说没有进行过任何的限制。不知道问题到底出在Exchange 2003 上,还是在ISP那里。这个问题已经快两周了,还没解决,请版主帮忙啊!<br>
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