Begins asynchronous SendCommand operation. Executes a command on the SMTP server.

Namespace:  Rebex.Legacy
Assembly:  Rebex.Smtp (in Rebex.Smtp.dll)

Syntax

Visual Basic
Public Shared Function BeginSendCommand ( _
	instance As Smtp, _
	command As String, _
	callback As AsyncCallback, _
	state As Object _
) As IAsyncResult
C#
public static IAsyncResult BeginSendCommand(
	Smtp instance,
	string command,
	AsyncCallback callback,
	Object state
)

Parameters

instance
Type: Rebex.Net..::..Smtp
Instance of Smtp.
command
Type: System..::..String
Command (e.g. "HELP").
callback
Type: System..::..AsyncCallback
An optional asynchronous callback to be called when the operation is complete.
state
Type: System..::..Object
A user-provided object that identifies this particular asynchronous operation.

Return Value

An IAsyncResult that references the asynchronous operation.

Remarks

Must be followed by a call to ReadResponse method.

Use ReadResponse and SendCommand to implement various custom commands.

In builds for .NET 4.0 and higher, this method is available as an extension method. Add 'using Rebex.Legacy' (C#) or 'Import Rebex.Legacy' (VB.NET) to your code in order to use it.

Version Information

.NET

Supported in: .NET 6.0, 5.0; .NET Framework 4.8, 4.7.x, 4.6.x, 4.5.x, 4.0

.NET Standard 2.0

Supported in: .NET Core 3.1; .NET Core 2.1; Xamarin.Android 10.1 (or higher); Xamarin.iOS 13.10 (or higher)

See Also