是的，它仍需指明使用哪个邮箱，但客户机应用程序本身不再处理轮询了。
(Yes, it still needs to indicate which mailbox to use, but the client application is free from doing the polling itself).
我知道他最起码有三个电子邮箱，但是我觉得从来没有找出哪个是他最爱的邮箱。
He has three E-mail addresses, at least that I know about, but I've figured out the best one. I think.
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