公司新架exchange2010服务器，原本一切正常，后来出了些问题，折腾好久才搞好，现在准备架设outlook anywhere，架设都正常，证书服务器也架设好，但是就是在外部不能用outlook收发邮件。外部显示如下：
正在测试 RPC/HTTP 连接。
RPC/HTTP 测试失败。
测试步骤
Attempting to resolve the host name exmail.octvision.com in DNS.
The host name resolved successfully.
其他详细信息
Testing TCP port 443 on host exmail.octvision.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.
测试步骤
ExRCA is attempting to obtain the SSL certificate from remote server exmail.octvision.com on port 443.
ExRCA successfully obtained the remote SSL certificate.
其他详细信息
Validating the certificate name.
The certificate name was validated successfully.
其他详细信息
Certificate trust is being validated.
Certificate trust validation failed.
测试步骤
ExRCA is attempting to build certificate chains for certificate CN=exmail.octvision.com, OU=IT, O=exmail, L=SZ, S=GD, C=CN.
A certificate chain couldn't be constructed for the certificate.
其他详细信息
The certificate chain couldn't be built. You may be missing required intermediate certificates.
