MSExchange Autodiscover 2

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上一次修改主题： 2011-03-19

本文对特定 Exchange 事件进行了说明并提供了可能的解决方案。如果您在此处未找到所需内容，请尝试在 Exchange 2010 帮助中进行搜索。

Details

Product Name

Exchange

Product Version

14.0

Event ID

2

Category

Web

Symbolic Name

ErrWebAnonymousRequest

Message Text

Anonymous Request received from HostAddress:"%1", HostName:"%2". Invalid Autodiscover site configuration. To fix the problem remove Anonymous access.

Explanation

This Error event indicates that the Microsoft Exchange Autodiscover service was unable to process anonymous requests from an Autodiscover client, for example, an Outlook client. An invalid Autodiscover site configuration and an anonymous client request could cause this error. 'HostName' in the error message text refers to the Domain Name System (DNS) name of the remote client.

Autodiscover requires authenticated clients to connect by using either of these methods:

  • The client may use a Secure Sockets Layer (SSL) connection to perform Active Directory lookups to find the requested mailbox database.

  • The client may provide URLs of Exchange services such as the Availability service.

We do not recommend that you enable anonymous authentication as this will give spammers access to e-mail addresses. A HTTP 403 error is sent to the client.

User Action

To resolve this error, do the following:

  • Check the Autodiscover virtual directory site configuration settings on the Exchange Client Access server (CAS) and make sure SSL is selected for Basic or Integrated Windows authentication (also known as NTLM or Kerberos authentication).

  • Follow these steps to disable Anonymous access in the Autodiscover virtual directory on the Client Access server.

    1. In Internet Information Services (IIS) Manager, locate the Autodiscover virtual directory.

    2. Right-click Autodiscover virtual directory and select Properties.

    3. On the Directory Security tab, under Authentication and access control, click Edit.

    4. In the Authentication Methods screen, clear Enable anonymous access.

For more information about the Autodiscover service, see 管理自动发现服务.

For More Information

如果您尚未执行此操作，请考虑运行 Exchange 工具，已创建这些工具以帮助您分析 Exchange 环境并对其进行疑难解答。这些工具可帮助确保您的配置与 Microsoft 最佳实践保持一致。它们还可以帮助您识别和解决性能问题，并改进邮件流。若要运行这些工具，请转到 Exchange 管理控制台的“工具箱”节点。若要了解有关这些工具的详细信息，请参阅管理工具箱中的工具。