SmtpClient Constructor

SmtpClient Constructor

Initializes a new instance of the SmtpClient class by using configuration file settings.

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

public SmtpClient()

This constructor initializes the Host, Credentials, and Port properties for the new SmtpClient by using the settings in the application or machine configuration files. For more information, see <mailSettings> Element (Network Settings).

The following code example demonstrates sending an e-mail message.

		public static void CreateTestMessage3()
		{
			MailAddress to = new MailAddress("jane@contoso.com");
			MailAddress from = new MailAddress("ben@contoso.com");
			MailMessage message = new MailMessage(from, to);
			message.Subject = "Using the new SMTP client.";
			message.Body = @"Using this new feature, you can send an e-mail message from an application very easily.";
			// Use the application or machine configuration to get the  
			// host, port, and credentials.
			SmtpClient client = new SmtpClient();
			Console.WriteLine("Sending an e-mail message to {0} at {1} by using the SMTP host={2}.",
				to.User, to.Host, client.Host);
      try {
			  client.Send(message);
			}
			catch (Exception ex) {
			  Console.WriteLine("Exception caught in CreateTestMessage3(): {0}", 
                    ex.ToString() );			  
		  }
		}
public:
    static void CreateTestMessage3()
    {
        MailAddress* to = new MailAddress(S"jane@contoso.com");
        MailAddress* from = new MailAddress(S"ben@contoso.com");
        MailMessage* message = new MailMessage(from, to);
        message->Subject = S"Using the new SMTP client.";
        message->Body = S"Using this new feature, you can send an e-mail message from an application very easily.";
        // Use the application or machine configuration to get the 
        // host, port, and credentials.
        SmtpClient* client = new SmtpClient();
        Console::WriteLine(S"Sending an e-mail message to {0} at {1} by using the SMTP host {2}.", 
            to->User, to->Host, client->Host);
        client->Send(message);
    }

For an example of the <mailSettings> node in the application or machine configuration file, see <mailSettings> Element (Network Settings).

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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