我们有一个与Exchange Server 2010 Activesync相关的问题。我的问题是：当从外部连接到ActiveSync时，我收到以下错误。
ExRCA is testing Exchange ActiveSync. The Exchange ActiveSync test failed. Test Steps Attempting to resolve the host name mail.xxxxx.com in DNS. The host name resolved successfully. Additional Details IP addresses returned: xx.0.x3.4 Testing TCP port 443 on host mail.x.com to ensure it's listening and open. The port was opened successfully. Testing the SSL certificate to make sure it's valid. The SSL certificate failed one or more certificate validation checks. Test Steps Validating the certificate name. Certificate name validation failed. Tell me more about this issue and how to resolve it Additional Details Host name mail.x.com doesn't match any name found on the server certificate CN=xxxxxx. 在此先感谢您的所有帮助。
如果您连接到外部的DNS名称（例如mail.x.com）不是为Exchangeconfiguration的SSL证书名称（如果您是如何发布Exchange的话，那么您可以使用ISA / TMG forr）看到这个错误。
Exchange使用自签名SSL证书进行安装，但是您需要使用正确的SAN证书replace此类外部访问scheme，否则您将面临configuration和支持问题的恶梦。
以下是为Exchange 2010设置SSL证书的一些指导。
http://exchangeserverpro.com/configure-an-ssl-certificate-for-exchange-server-2010