可以的，只要你在收件人那里把邮箱地址填对就可以发送的。
QQ邮箱和其他邮箱一样，就是一个发送邮件的工具，只是出品公司不同，邮箱之间是可以互发邮件的，只要邮件地址正确都可以成功发送。
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扩展资料：
QQ邮箱给163邮箱发邮件方法：
1、打开邮箱，登录到QQ邮箱；
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2、在菜单栏点击选择”写信“；
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3、在收件人处正确填写你要发送的163邮箱账号；
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4、编辑主题和内容，点击发送就可以了；
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