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SmtpClient.SendMailAsync Method (MailMessage)

.NET Framework 4.5

Sends the specified message to an SMTP server for delivery as an asynchronous operation.

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

[HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)]
public Task SendMailAsync(
	MailMessage message
)

Parameters

message
Type: System.Net.Mail.MailMessage

A MailMessage that contains the message to send.

Return Value

Type: System.Threading.Tasks.Task
Returns Task.
The task object representing the asynchronous operation.

ExceptionCondition
ArgumentNullException

message is null.

This operation will not block. The returned Task> object will complete once the message has been sent.

NoteNote

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: ExternalThreading. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5

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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