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DeliveryNotificationOptions Enumeration

Describes the delivery notification options for e-mail.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:  System.Net.Mail
Assembly:  System (in System.dll)

[FlagsAttribute]
public enum DeliveryNotificationOptions

Member nameDescription
DelayNotify if the delivery is delayed.
NeverA notification should not be generated under any circumstances.
NoneNo notification information will be sent. The mail server will utilize its configured behavior to determine whether it should generate a delivery notification.
OnFailureNotify if the delivery is unsuccessful.
OnSuccessNotify if the delivery is successful.

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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