diff --git a/MailKit/Net/Smtp/SmtpClient.cs b/MailKit/Net/Smtp/SmtpClient.cs
index dac84c59b0..a643aaa070 100644
--- a/MailKit/Net/Smtp/SmtpClient.cs
+++ b/MailKit/Net/Smtp/SmtpClient.cs
@@ -1819,6 +1819,9 @@ protected virtual string GetEnvelopeId (MimeMessage message)
///
/// Gets or sets how much of the message to include in any failed delivery status notifications.
///
+ ///
+ ///
+ ///
/// A value indicating how much of the message to include in a failure delivery status notification.
public DeliveryStatusNotificationType DeliveryStatusNotificationType {
get; set;