This documentation is archived and is not being maintained.

SmtpClient::Timeout Property

Gets or sets a value that specifies the amount of time after which a synchronous Send call times out.

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

public:
property int Timeout {
	int get ();
	void set (int value);
}

Property Value

Type: System::Int32
An Int32 that specifies the time-out value in milliseconds. The default value is 100,000 (100 seconds).

ExceptionCondition
ArgumentOutOfRangeException

The value specified for a set operation was less than zero.

InvalidOperationException

You cannot change the value of this property when an email is being sent.

By default, calls to the Send method block until the operation completes. If you set the Timeout property to a positive value, and a Send operation cannot complete in the allotted time, the SmtpClient class throws an SmtpException exception.

To send a message and continue executing in the application thread, use the SendAsync method.

The following code example demonstrates getting and setting the time-out value.

static void CreateTimeoutTestMessage( String^ server )
{
   String^ to = L"jane@contoso.com";
   String^ from = L"ben@contoso.com";
   String^ subject = L"Using the new SMTP client.";
   String^ body = L"Using this new feature, you can send an e-mail message from an application very easily.";
   MailMessage^ message = gcnew MailMessage( from,to,subject,body );
   SmtpClient^ client = gcnew SmtpClient( server );
   Console::WriteLine( L"Changing time out from {0} to 100.", client->Timeout );
   client->Timeout = 100;

   // Credentials are necessary if the server requires the client  
   // to authenticate before it will send e-mail on the client's behalf.
   client->Credentials = CredentialCache::DefaultNetworkCredentials;
   client->Send( message );
}
public:
    static void CreateTimeoutTestMessage(String* server )
    {
        String* to = S"jane@contoso.com";
        String* from = S"ben@contoso.com";
        String* subject = S"Using the new SMTP client.";
        String* body  = S"Using this new feature, you can send an e-mail message from an application very easily.";
        MailMessage* message = new MailMessage(from, to, subject, body);
        SmtpClient* client = new SmtpClient(server);
        Console::WriteLine(S"Changing time out from {0} to 100.", __box(client->Timeout));
        client->Timeout = 100;
        // Credentials are necessary if the server requires the client 
        // to authenticate before it will send e-mail on the client's behalf.
       client->Credentials = CredentialCache::DefaultNetworkCredentials;
       client->Send(message);
    }

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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