Often, you may have to send an email message to multiple types of recipients (such as carbon copy or blind carbon copy. PowerTCP Mail for .NET makes sending to multiple types of recipients easy to manage, by representing these types as collections of the MessageStream object.

To send mail to multiple recipients, use the following steps.

1. Add the Smtp component to a new form.
2. Import the namespace of the component you would like to use using "Using" (C#) or "Imports" (VB.NET). Place the following code at the top of your file.

   C#	Copy Code
   using Dart.PowerTCP.Mail;

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   Imports Dart.PowerTCP.Mail

3. Add a button to the form.
4. Email messages are represented by MessageStream objects. Create a MessageStream object. Place the following code in the Click event of the button added to the form in step 3.

   C#	Copy Code
   // Create a MessageStream MessageStream msg = new MessageStream(); // Set "From" and "Subject" msg.From.Add(new MailAddress("me@myserver.com")); msg.Subject = "Test Message"; // Set the message text msg.Text = "This is a test message";

   Visual Basic	Copy Code
   ' Create a MessageStream Dim msg As New MessageStream() ' Set "From" and "Subject" msg.From = New MailAddress("me@myserver.com") msg.Subject = "Test Message" ' Set the message text msg.Text = "This is a test message"

5. Add a couple of normal recipients. These will be listed under the "TO:" header of the message, and will be sent after the "RCPT TO" command.

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   // Add a couple of normal recipients. msg.To.Add(new MailAddress("email1@yourserver.com")); msg.To.Add(new MailAddress(email2@yourserver.com));

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   ' Add a couple of normal recipients. msg.To.Add(New MailAddress("email1@yourserver.com")) msg.To.Add(New MailAddress(email2@yourserver.com))

6. Add a "carbon copy" address.

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   // Add a CC recipient msg.CC.Add(new MailAddress(email3@yourserver.com));

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   ' Add a CC recipient msg.CC.Add(New MailAddress(email3@yourserver.com))

7. Add a "blind carbon copy" address.

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   // Add a BCC recipient msg.BCC.Add(new MailAddress(email4@yourserver.com));

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   ' Add a BCC recipient msg.BCC.Add(New MailAddress(email4@yourserver.com))

8. Send the message. The Send method returns an SmtpResult, which can be checked to see the mail server's response to each mail address.

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   // Send the message. smtp1.Server = "mail.test.com"; SmtpResult result = smtp1.Send(msg); // Check the response from the server to each address. foreach(MailAddress ma in result.Recipients) Debug.WriteLine(ma.ServerResponse.ToString());

   Visual Basic	Copy Code
   ' Send the message. smtp1.Server = "mail.test.com" Dim result As SmtpResult = smtp1.Send(msg) ' Check the response from the server to each address. Dim ma as MailAddress For Each ma in result.Recipients Debug.WriteLine(ma.ServerResponse.ToString()) Next

9. Compile and run the application.