Exchange 2013 POP3被inactive无法连接

【问题描述】
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两台CAS服务器中有一台CAS服务器POP3无法连接。经过测试有问题的CAS服务器：
1、telnet 127.0.0.1 110的端口有回显：

2、但是如果连接网卡绑定的IP则连接上没有回显：

3、其它服务都是正常，比如smtp的25

【解决方法】
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经过分析造成这个问题的原因，可能Managed Availability（MA）对应Component被inactive造成的，需要手动激活：

1.     使用以下命令检查CAS服务器的ServerCommponentstate状态

Get-ServerComponentState -Identity srvcas001

2.     使用以下命令将State为非Active的组件进行激活：

Set-ServerComponentState -Identity  srvcas001 -Component PopProxy -Requester HealthApi -State Active

3.     再次检查该组件状态：

4.     测试telnet是否正常：

【参考信息】
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http://blogs.technet.com/b/exchange/archive/2013/09/26/server-component-states-in-exchange-2013.aspx

http://blogs.technet.com/b/ehlro/archive/2014/02/20/exchange-2013-managed-availability-healthset-troubleshooting.aspx

https://social.technet.microsoft.com/Forums/exchange/en-US/5f1a2cee-19ad-43e6-b281-bb7f094d8c09/pop-works-via-localhost-but-not-from-other-networked-machines?forum=exchangesvrclients

 

https://social.microsoft.com/Forums/pt-BR/57da28d3-9882-4836-9bbb-35f1d91cddf8/exchange2013pop?forum=exchangeserverzhchs

 

http://blog.jasonsherry.net/2014/08/19/exchange-2013-pop3-service-drops-connections-fix/

 

http://jermsmit.com/fixed-pop3-service-after-exchange-2013-cu6/

 

http://msexchangeguru.com/2014/12/01/server-component-state/

 

http://careexchange.in/popproxytestprobeimapproxytestprobe-is-failing-on-exchange-server-2013/

https://technet.microsoft.com/zh-CN/library/jj218699(v=exchg.150).aspx

http://blogs.technet.com/b/ehlro/archive/2014/02/20/exchange-2013-managed-availability-healthset-troubleshooting.aspx