问题描述
我正在尝试实施方法来管理电子邮件地址（即当我发送的电子邮件退回我希望它发送到特定的电子邮件地址，以便我可以更新我的数据库，以避免将来发送电子邮件到该电子邮件地址）。
I'm trying to implement the Variable envelope return path (VERP) method to manage email addresses (ie when an email I send bounces back I want it to be sent to a specific email address so that I can update my database to avoid sending emails to that email address in the future).
根据，可以指定电子邮件地址a反弹邮件被发送到。如何在.Net中执行此操作？
According to this article it is possible to specify the email address a bounce email is sent to. How do you do this in .Net?
例如说我（[email protected]）想发送一封电子邮件给你（[email protected]）。如果[email protected]不再存在，我希望您的服务器将反弹邮件发送到[email protected]）。这样当我收到这个退回的电子邮件，我知道[email protected]不再是一个有效的电子邮件地址，我可以相应地更新我的数据库。
For example say I ([email protected]) want to send an email to you ([email protected]). If [email protected] doesn't exist anymore I want yourserver to send the bounce email to [email protected]). This way when I receive this bounced email I know that [email protected] is not a valid email address anymore and I can update my database accordingly.
在此示例中，跳出地址将是：[email protected]
如何使用系统指定.net.Mail？
In this example, the bounce address would be: [email protected]
How do you specify it using System.Net.Mail?
推荐答案
底线是你不能在.NET中这样做。您只能设置FROM地址，System.Net.Mail也将用作Envelope-From。
The bottom line is that you cannot do this in .NET. You can only set the FROM address, which System.Net.Mail will also use as the Envelope-From.
要执行此操作，您需要使用第三方SMTP对象像我写的那样：
To do something like this, you would need to use a 3rd party SMTP object like the one I wrote:
在aspNetEmail中，您可以执行以下操作：
In aspNetEmail, you can do something like:
EmailMessage msg = new EmailMessage();
msg.ReversePath = "[email protected]
aspNetEmail将使用ReversePath值在SMTP会话期间的MAIL FROM命令我可以很容易地调用此属性ReturnPath或EnvelopeFrom。回想起来，EnvelopeFrom将是一个更好的名称。
aspNetEmail will use the ReversePath value in the MAIL FROM command during the SMTP Session. I could have easily of called this property "ReturnPath" or "EnvelopeFrom". In retrospect, EnvelopeFrom would have been a better name.
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