企业邮箱注册appid 被退回

[font=Helvetica, Arial, PingFang, 苹方, "]无法发送到chinadev@app, com [font=Helvetica, Arial, PingFang, 苹方, "]    系统应答：(24)the mta server of apple.com [font=Helvetica, Arial, PingFang, 苹方, "] -- ma1-aaemail-dr-lapp03.apple.com [font=Helvetica, Arial, PingFang, 苹方, "](17.171.2.72) reply:550 5.1.1 User Unknown at 2018-02-08 17:57:46 [font=Helvetica, Arial, PingFang, 苹方, "]    退信原因：收信方运营商认为该收件人账号不存在。 [font=Helvetica, Arial, PingFang, 苹方, "]    解决建议：请确认此收件人是否存在。
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但是可以发给qq邮箱
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