如果要在已发送邮件文件夹中放置副本，则需要自己将其放置在其中.有关示例，请参见 JavaMail示例程序msgsend.java .

If you want a copy in your sent messages folder, you need to put it there yourself. See the JavaMail sample program msgsend.java for an example.

此外，您还需要修复这些常见的JavaMail错误在您的程序中.

Also, you'll want to fix these common JavaMail mistakes in your program.