C# 使用 Windows 虚拟邮件服务器发送带有标题返回路径的电子邮件
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Sending an email with the header return-path using windows virtual mail server
提问by John_
I'm trying to send an email message using the .NET MailMessage class which can also have the return-path header added so that any bounces come back to a different email address. Code is below:
我正在尝试使用 .NET MailMessage 类发送电子邮件，该类还可以添加返回路径标头，以便任何退回邮件都返回到不同的电子邮件地址。代码如下：
MailMessage mm = new MailMessage(
new MailAddress(string.Format("{0}<{1}>", email.FromName, email.FromEmail)),
new MailAddress(emailTo));
mm.Subject = ReplaceValues(email.Subject, nameValues);
mm.ReplyTo = new MailAddress(string.Format("{0}<{1}>", email.FromName, email.FromEmail));
mm.Headers.Add("Return-Path", ReturnEmail);
// Set the email html and plain text
// Removed because it is unneccsary for this example
// Now setup the smtp server
SmtpClient smtp = new SmtpClient();
smtp.Host = SmtpServer;
smtp.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis;
if (SmtpUsername.Length > 0)
{
System.Net.NetworkCredential theCredential =
new System.Net.NetworkCredential(SmtpUsername, SmtpPassword);
smtp.Credentials = theCredential;
}
smtp.Send(mm);
Whenever I check the email that was sent I check the header and it always seems to be missing return-path. Is there something I am missing to configure this correctly? As I said above I'm using the standard Virtual Mail Server on my development machine (XP) however it will run on Windows 2003 eventually.
每当我检查发送的电子邮件时，我都会检查标题，但它似乎总是缺少返回路径。我是否缺少正确配置它的东西？正如我上面所说，我在我的开发机器 (XP) 上使用标准虚拟邮件服务器，但它最终将在 Windows 2003 上运行。
Has anyone got any ideas why it isn't coming through?
有没有人知道为什么它没有通过？
采纳答案by Romhein
The Return-Path is set based on the SMTP MAIL FROM Envelope. You can use the Sender property to do such a thing.
Another discussion on a related issue you will have sooner or later: How can you set the SMTP envelope MAIL FROM using System.Net.Mail?
返回路径是根据 SMTP MAIL FROM Envelope 设置的。您可以使用 Sender 属性来做这样的事情。
关于您迟早会遇到的相关问题的另一个讨论：如何使用 System.Net.Mail 设置 SMTP 信封 MAIL FROM？
And btw, if you use SmtpDeliveryMethod.PickupDirectoryFromIis, the Sender property is not used as a MAIL FROM; you have to use Network as a delivery method to keep this value.
I did not find any workaround for this issue.
PickupDirectoryFromIis, Sender property and SMTP MAIL FROM envelope
顺便说一句，如果您使用 SmtpDeliveryMethod.PickupDirectoryFromIis，则 Sender 属性不会用作 MAIL FROM；您必须使用 Network 作为交付方式来保持此值。我没有找到任何解决此问题的方法。
PickupDirectoryFromIis、Sender 属性和 SMTP MAIL FROM 信封
