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MailMessage Constructor (MailAddress, MailAddress)

Initializes a new instance of the MailMessage class by using the specified MailAddress class objects.

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

public MailMessage(
	MailAddress from,
	MailAddress to


Type: System.Net.Mail.MailAddress

A MailAddress that contains the address of the sender of the e-mail message.

Type: System.Net.Mail.MailAddress

A MailAddress that contains the address of the recipient of the e-mail message.


from is null.


to is null.


from or to is malformed.

The From property is initialized using from and the To property is initialized using to.

The following code example demonstrates calling this constructor.

		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 {
			catch (Exception ex) {
			  Console.WriteLine("Exception caught in CreateTestMessage3(): {0}", 
                    ex.ToString() );			  

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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