Sending mail message to multiple recipients

You may have to send an email message to multiple recipients. UltimateMail makes sending to multiple recipients easy to manage, by representing these types as collections of the MailMessage object.

The example below illustrates how to send a mail message to multiple recipients:

using System;
using System.Windows.Forms;
using ComponentPro.Net;
using ComponentPro.Net.Mail;

...

const string serverName = "myserver";
const string user = "name@domain.com";
const string password = "mytestpassword";
const int port = 465;
const SslSecurityMode securityMode = SslSecurityMode.Implicit;

Smtp client = new Smtp();
try
{
    MailMessage mmMessage = new MailMessage();
    mmMessage.From.Add("from@thedomain.com");
    mmMessage.To.Add("name@domain.com");
    mmMessage.To.Add("someone@domain.com");
    mmMessage.CC.Add("someone2@domain.com");
    mmMessage.Bcc.Add("someone3@domain.com");
    mmMessage.Subject = "Test Subject";
    mmMessage.BodyText = "Test Content";

    Console.WriteLine("Connecting SMTP server: {0}:{1}...", serverName, port);
    // Connect to the server. 
    client.Connect(serverName, port, securityMode);

    // Login to the server. 
    Console.WriteLine("Logging in as {0}...", user);
    client.Authenticate(user, password);

    Console.WriteLine("Sending mail message...");
    client.Send(mmMessage);
    Console.WriteLine("Message sent...");

    // Disconnect. 
    Console.WriteLine("Disconnecting...");
    client.Disconnect();
}
catch (SmtpException smtpExc)
{
    MessageBox.Show(string.Format("An SMTP error occurred: {0}, ErrorStatus: {1}", smtpExc.Message, smtpExc.Status));
}
catch (Exception exc)
{
    MessageBox.Show(string.Format("An error occurred: {0}", exc.Message));
}

Imports ComponentPro.Net
Imports ComponentPro.Net.Mail

...

Const serverName As String = "myserver" 
Const user As String = "name@domain.com" 
Const password As String = "mytestpassword" 
Const port As Integer = 465
Const securityMode As SslSecurityMode = SslSecurityMode.Implicit

Dim client As New Smtp()
Try 
    Dim mmMessage As New MailMessage()
    mmMessage.From.Add("from@thedomain.com")
    mmMessage.To.Add("name@domain.com")
    mmMessage.To.Add("someone@domain.com")
    mmMessage.CC.Add("someone2@domain.com")
    mmMessage.Bcc.Add("someone3@domain.com")
    mmMessage.Subject = "Test Subject" 
    mmMessage.BodyText = "Test Content" 
 
    Console.WriteLine("Connecting SMTP server: {0}:{1}...", serverName, port)
    ' Connect to the server. 
    client.Connect(serverName, port, securityMode)

    ' Login to the server. 
    Console.WriteLine("Logging in as {0}...", user)
    client.Authenticate(user, password)

    Console.WriteLine("Sending mail message...")
    client.Send(mmMessage)
    Console.WriteLine("Message sent...")

    ' Disconnect. 
    Console.WriteLine("Disconnecting...")
    client.Disconnect()
Catch smtpExc As SmtpException
    MessageBox.Show(String.Format("An SMTP error occurred: {0}, ErrorStatus: {1}", smtpExc.Message, smtpExc.Status))
Catch exc As Exception
    MessageBox.Show(String.Format("An error occurred: {0}", exc.Message))
End Try