再想一想.错误的做法.
如果您尝试翻录另一个进程的文件，它将无法解决.

只是为了弄清楚:
您需要等待队列中发送的电子邮件的句柄吗?

必须有钩子告诉SMTP丢弃消息而不是发送消息.

Think again. False approach.
It can''t work out if you try to rip a file of another process.

Just to get it straight:
You need a handle on the emails waiting to be send in the queue?

There must be hook to tell the SMTP to drop the message instead of sending it.