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OUTLOOK收到http重定向到HTTPS的警告通知 RRS feed

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  • 你好,

    这个是当自动发现服务查询可用的DNS时,在可用的DNS中包含有http开头的记录,自动发现服务会尝试连接到该DNS记录导致;

    建议你参考下面的这篇博客,里面有介绍到这种情况:

    Exchange & The Autodiscover Web Service

    For external Outlook clients in Starbucks, they are not able to directly contact AD (I sure hope that you don’t have a DC exposing 389 TCP to the Internet…..)  and thus will use DNS to locate the Autodiscover endpoint. 

    A new feature is available that enables Outlook 2007 to use DNS Service Location (SRV) records to locate the Exchange Autodiscover service

     http://support.microsoft.com/?kbid=940881 

    Prior to this update Outlook would perform these DNS queries by default:

    • https://<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml
    • https://autodiscover.<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml
    • http://autodiscover.<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml

    With this update installed the SRV query is added:

        
    • https://<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml
    • https://autodiscover.<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml
    • http://autodiscover.<<var>smtpdomain</var>>/Autodiscover/Autodiscover.xml
    • SRV record query for _autodiscover._tcp.<smtpdomain>

    As an example:

    1. Autodiscover posts to https://contoso.com/Autodiscover/Autodiscover.xml. This fails.
    2. Autodiscover performs the following redirect check:

      GET http://autodiscover.contoso.com/Autodiscover/Autodiscover.xml

      This fails.

    3. Autodiscover uses DNS SRV lookup for _autodiscover._tcp.contoso.com, and then "mail.contoso.com" is returned.
    4. Outlook asks permission from the user to continue with Autodiscover to post to https://mail.contoso.com/autodiscover/autodiscover.xml.
    5. Autodiscover's POST request is successfully posted to https://mail.contoso.com/autodiscover/autodiscover.xml.

    Note: If you Internet facing DNS provider does not support SRV records then you cannot use this feature

    谢谢!


    Niko Cheng
    TechNet Community Support

    2015年1月19日 7:48
    版主
  • 感谢你的解答,有几个问题我说明一下
    1、我们是内网环境出现了这样的问题,机器都加入了AD域,机器到AD/DNS 访问时正常的,DNS 没启用SRV记录
    2、测试电子邮件自动配置,找到URL https://autodiscover.contoso.com/Autodiscover/Autodiscover.xml. 就已经OK了,我的理解是autodiscover在这一步就应该完结,不会去找http。
    3、这种现象不确定,outlook2007/2010 客户端都收到过警告。
    还望大神指点!
    2015年1月19日 9:13