[Smec2019] 系统退信/Mail Delivery Failed

[postmaster at cau.edu.cn]

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smec2019 at roma1.infn.it，您好:

您发送到 wwzhang at cau.edu.cn 的邮件被收件人服务器拒收了，对方服务器返回的原因如下：
SMTP error, DOT: 550 Requested action not taken: rVDNygBXOW0oeBdckLrMAA--.30968S3, mail reject by CAC .

您的原信请看附件。

Dear smec2019 at roma1.infn.it,

Your message to wwzhang at cau.edu.cn was rejected by the recipient domain. The error that the other server returned was:
" SMTP error, DOT: 550 Requested action not taken: rVDNygBXOW0oeBdckLrMAA--.30968S3, mail reject by CAC ".

Your original message is included as attachment.

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This message is generated by Coremail.
您收到的是来自 Coremail 专业邮件系统的信件.

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