（ 邮件用语） 无法投递时， 退回原处。

In case of non - delivery, return to ( the ) sender .

youdao

这件邮件的寄达地址不正确，我们无法将它投递给收件人，请你尽快正确的寄达地址。谢谢。

We cannot send the mail to the recipient due to invalid mailing address. Kindly provide correct address asap. Thank you.

youdao

第二十三条无法投递的邮件，应当退回寄件人。

Undeliverable postal materials shall be returned to the senders.

youdao