How to Send Messages with Read Confirmation Using SmtpClient in .NET

If you need to send an email message and request a confirmation (receipt) from the reader of the message and you intend to use the SmptClient class of Microsoft .NET Framework, you will need to set a custom header on the MailMessage object before sending it, as shown below (C# code):

MailMessage mailMessage = new MailMessage();
mailMessage.Headers.Add("Disposition-Notification-To", “”);


About Sorin Dolha

My passion is software development, but I also like physics.
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