SmtpException Class
This page is specific to:.NET Framework Version:2.03.03.54.0
.NET Framework Class Library
SmtpException Class

Represents the exception that is thrown when the SmtpClient is not able to complete a Send or SendAsync operation.

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

'Usage

Dim instance As SmtpException

'Declaration

<SerializableAttribute> _
Public Class SmtpException _
    Inherits Exception _
    Implements ISerializable
Remarks

The StatusCode property contains the status code returned by the SMTP server.

Examples

The following code example displays an error message when the SmtpException exception is thrown.

We do not yet have a code sample for this language.
public:
    static void RetryIfBusy(String* server)
    {
       MailAddress* from = new MailAddress(S"ben@contoso.com");
       MailAddress* to = new MailAddress(S"jane@contoso.com");
       MailMessage* message = new MailMessage(from, to);
       // message.Subject = "Using the SmtpClient class.";
       message->Subject = S"Using the SmtpClient class.";
       message->Body = S"Using this feature, you can send an e-mail message from an application very easily.";
       // Add a carbon copy recipient.
       MailAddress* copy= new MailAddress(S"Notifications@contoso.com");
       message->CC->Add(copy);
       SmtpClient* client = new SmtpClient(server);
        // Include credentials if the server requires them.
       client->Credentials = dynamic_cast<ICredentialsByHost*> (CredentialCache::DefaultNetworkCredentials);
       Console::WriteLine(S"Sending an e-mail message to {0} using the SMTP host {1}.", 
            to->Address, client->Host);
       try 
       {
            client->Send(message);
       }
       catch (SmtpFailedRecipientsException* ex)
       {
           for (int i = 0; i<ex->Exceptions->Length; i++)
           {
                SmtpStatusCode status = ex->Exceptions[i]->StatusCode;
               if (status == SmtpStatusCode::MailboxBusy ||
                   status == SmtpStatusCode::MailboxUnavailable)
               {
                    Console::WriteLine(S"Delivery failed - retrying in 5 seconds.");
                    System::Threading::Thread::Sleep(5000);
                    client->Send(message);
                }
                else
                {
                    Console::WriteLine(S"Failed to deliver message to {0}", ex->FailedRecipients[i]);
                }
            }
       }
       __finally
       {
            client->Dispose();
       }
}
Inheritance Hierarchy

System..::.Object
  System..::.Exception
    System.Net.Mail..::.SmtpException
      System.Net.Mail..::.SmtpFailedRecipientException
Thread Safety

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

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.
Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0
See Also

Reference

© 2009 Microsoft Corporation. All rights reserved.   Terms of Use | Trademarks | Privacy Statement
Page view tracker
Rate the Lightweight library
x
Lightweight builds on ScriptFree (loband) by adding features you've requested: a SearchBox and default code language selection.
Do you like the SearchBox?
Do you like the tabbed code blocks?
How useful is this topic?
Tell us more.
Thanks
x
You're helping to improve MSDN Online.
Feedback
Switch View
Classic
Lightweight Beta
ScriptFree
Switch View