[英]C# Mailkit delivery status notification
我正在使用MailKit创建电子邮件管理系统。
我需要跟踪交付,但是我只能找到DeliveryStatusNotification enum
,但无处可应用。
到目前为止,我有:
var message = new MimeMessage();
DeliveryStatusNotification delivery =
DeliveryStatusNotification.Delay |
DeliveryStatusNotification.Failure |
DeliveryStatusNotification.Never |
DeliveryStatusNotification.Success;
message.Headers.Add(new Header(HeaderId.ReturnReceiptTo, "test@example.com")); // Delivery report
引导我朝正确的方向前进??
您需要做的是子类SmtpClient并重写GetDeliveryStatusNotifications方法:
class DSNSmtpClient : SmtpClient
{
protected override DeliveryStatusNotification? GetDeliveryStatusNotifications (MimeMessage message, MailboxAddress mailbox)
{
if (/* some criteria for deciding whether to get DSN's... */)
return DeliveryStatusNotification.Delay |
DeliveryStatusNotification.Failure |
DeliveryStatusNotification.Success;
return null;
}
}
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