smtp; 550访问被拒绝 - 无效的HELO名称（参见RFC2821 4.1.1.1） [英] smtp;550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
问题描述
我正在运行Windows Server 2008 R2，但是我收到了来自少数几个域的smtp邮件。
I'm running Windows server 2008 R2 but am getting smtp mail rejected from a few domains.
要测试它我将文本文件放入C： \inetpub\mailroot \Pickup目录，如下所示：
To test it I'm dropping a text file into C:\inetpub\mailroot\Pickup directory, with something like this:
From: my@emailaddress.com
To: someone@somewhere.com
Subject: testing
This is a test
它将发送到某些域名，但有些域名正在返回：
It will send to some domains, but some are returning:
Reporting-MTA: dns;DEDICAT-93I3U5A
Received-From-MTA: dns;DEDICAT-93I3U5A
Arrival-Date: Wed, 8 Aug 2012 12:50:58 +0100
Final-Recipient: rfc822;someone@somewhere.com
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
我知道这可能与服务器上的smtp设置（IIS 7.5）有关。
有人可以给我一些关于从哪里开始的建议吗？
I understand this could be something to do with the smtp setup on the server (IIS 7.5). Can anybody give me some advice as to where to start please?
谢谢，
Andy 。
推荐答案
某些SMTP服务器要求您使用HELO命令发送有效的主机名，该命令也与反向DNS相同请求来自的IP地址。
Some SMTP servers require you to send a valid host name with the HELO command that also is the same as the reverse DNS of the IP address the request originates from.
您可以通过旧的IIS6管理控制台配置IIS SMTP服务器使用的主机名。为此，请选择SMTP服务器，右键单击并选择属性，转到选项卡交付，然后单击按钮高级。
You can configure the host name the IIS SMTP Server uses through the old IIS6 Management Console. To do so, select the SMTP Server, right click and select Properties, go to the tab Delivery and then click on the button Advanced.
您的IP地址的反向DNS通常由您的ISP控制。
The reverse DNS for your IP address is usually controlled by your ISP.
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