问题描述
我想用SMTP客户端uiing microsft.net用C＃作为编程语言来发送电子邮件。但对于通过SMTP客户端发送电子邮件，我们可以增加安全功能，如无代理或不是抄袭等等。我不希望电子邮件收件人转发或复制该邮件的内容。
I want to send email using SMTP client uiing microsft.net with C# as programming language. But for the emails sent through SMTP client, can we add security features like "no forwarding" or "no copying" etc. I dont want recipients of the email to forward or copy the content of the email.
推荐答案
的Lotus Notes（邮件客户端）着眼于灵敏度头。使用System.Net.Mail，您可以通过完成同样的事情（仅当您的用户均使用Lotus Notes）以下内容：
Lotus Notes (the mail client) looks at the "Sensitivity" header. Using System.Net.Mail, you can accomplish the same thing (ONLY if your users are all using Lotus Notes) by using the following:
mail.Headers.Add("Sensitivity", "Company-Confidential");
在Lotus Notes电子邮件客户端将禁止转发或复制，就好像你已经使用了Lotus Notes的COM对象。
The Lotus Notes email client will disallow forwarding or copying, just as if you had used the Lotus Notes COM object.
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