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MailAddressCollection Class

Store e-mail addresses that are associated with an e-mail message.

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

public class MailAddressCollection : Collection<MailAddress>
public class MailAddressCollection extends Collection<MailAddress>
public class MailAddressCollection extends Collection<MailAddress>
Not applicable.

The MailMessage.To, MailMessage.CC, and MailMessage.Bcc properties return instances of this class that are used to hold the respective e-mail addresses.

The following example adds an e-mail address to the MailAddressCollection that is returned by the Bcc property.

public static void CreateBccTestMessage(string server)
    MailAddress from = new MailAddress("", "Ben Miller");
    MailAddress to = new MailAddress("", "Jane Clayton");
    MailMessage message = new MailMessage(from, to);
    message.Subject = "Using the SmtpClient class.";
    message.Body = @"Using this feature, you can send an e-mail message from an application very easily.";
    MailAddress bcc = new MailAddress("");
    SmtpClient client = new SmtpClient(server);
    client.Credentials = CredentialCache.DefaultNetworkCredentials;
    Console.WriteLine("Sending an e-mail message to {0} and {1}.", to.DisplayName, message.Bcc.ToString());


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0