在邮件的个人签名中放入下面的一段话，告诉邮件阅读人员关于邮件信息保密的原则：
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The information contained in this message may be privileged and confidential. It is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete or destroy any copy of this message!
此邮件中包含的信息可能具有特权和机密性。仅供收件人个人或实体或其指定人员阅读。如果此邮件的读者不是预期收件人，请注意，严禁以任何形式传播此邮件。如果您错误地收到此邮件，请立即通知发件人并删除或销毁此邮件的任何副本！