有没有检查过Exchange的服务启动完整没?或者把服务器都重启一遍再看看。如果实在不行,找个晚上重启下Exchange服务器看看还会不会这样。 另外留意下出这种问题的时候,是不是服务器的内存资源会比较吃紧? [解决办法] 1.Open IIS Manager, and then navigate to Default Web Site. 2.Right-click Default Web Site, and then click Edit Bindings. 3.If a binding exists for HTTP, clear the host name value. 4.If no binding exists for HTTP, create a new binding that has no host name and a value of All Unassigned for the IP address. 5.Restart IIS. 。打开IIS管理器,然后定位到默认网站。