SmtpClient.OnRcptToError Event

Occurs when the smtp server rejected a recipient.

[Visual Basic]
Public Event OnRcptToError As OnRcptToErrorEventHandler
Public Delegate Sub OnRcptToErrorEventHandler( _
    ByVal sender As Object, _
    ByVal errorStr As String, _
    ByVal rcpt As String, _
    ByRef sendnext As Boolean, _
    ByRef cancel As Boolean _
)

[C#]
public event OnRcptToErrorEventHandler OnRcptToError;
public delegate void OnRcptToErrorEventHandler( 
     object sender, 
     string error,
     string rcpt,
     ref bool sendnext,
     ref bool cancel 
);

[C++]
public: __event OnRcptToErrorEventHandler* OnRcptToError;
public __gc __delegate void OnRcptToErrorEventHandler( 
     Object* sender, 
     String* error,
     String* rcpt,
     bool __gc *sendnext,
     bool __gc *cancel
);

Event Data

Remarks

Example

[Visual Basic, C#, C++, JScript.NET] To get the full samples of EASendMail, please refer to Samples section.

[Visual Basic]
Imports System.Windows.Forms
Imports EASendMail
Module Module1

    Sub OnRcptToError( _
    ByVal sender As Object, _
    ByVal errorstr As String, _
    ByVal rcpt As String, _
    ByRef sendnext As Boolean, _
    ByRef cancel As Boolean _
    )
        If MessageBox.Show(String.Format("{0} is rejected by server: {1}, are you want to continue to send the email?", _
                rcpt, errorstr), "Warning", MessageBoxButtons.OKCancel) = DialogResult.OK Then
            sendnext = True
        End If
    End Sub

    Sub Main()
        SendMail()
    End Sub

    Sub SendMail()
        Dim oMail As SmtpMail = New SmtpMail("TryIt")
        Dim oSmtp As SmtpClient = New SmtpClient

        Try
            Dim oServer As SmtpServer = New SmtpServer("myserveraddress")

            oMail.From = New MailAddress("from@adminsystem.com")
            oMail.To.Add(New MailAddress("good@adminsystem.com"))
            oMail.To.Add(New MailAddress("bad@adminsystem.com))

            oMail.Subject = "test subject"
            oMail.TextBody = "test body"

            AddHandler oSmtp.OnRcptToError, AddressOf OnRcptToError

            oSmtp.SendMail(oServer, oMail)
            Console.WriteLine("Message was sent")

        Catch exp As SmtpTerminatedException
            Console.WriteLine(exp.Message)
        Catch exp As SmtpServerException
            Console.WriteLine("Exception: Server Respond: {0}", exp.ErrorMessage)
        Catch exp As System.Net.Sockets.SocketException
            Console.WriteLine("Exception: Networking Error: {0} {1}", exp.ErrorCode, exp.Message)
        Catch exp As System.ComponentModel.Win32Exception
            Console.WriteLine("Exception: System Error: {0} {1}", exp.ErrorCode, exp.Message)
        Catch exp As System.Exception
            Console.WriteLine("Exception: Common: {0}", exp.Message)
        End Try
    End Sub
End Module

[C#]
using System;
using System.Windows.Forms;
using EASendMail;

namespace Test
{
    class Class1
    {
        public static void OnRcptToError( 
            object sender, 
            string error,
            string rcpt,
            ref bool sendnext,
            ref bool cancel 
        )
        {
            if( MessageBox.Show(String.Format("{0} is rejected by server: {1}, are you want to continue to send the email?", 
                rcpt, error), "Warning", MessageBoxButtons.OKCancel) == DialogResult.OK )
            {
                sendnext = true;
            }        
        }

        [STAThread]
        static void Main(string[] args)
        {
            SendMail();
        }

        static void SendMail()
        {
            SmtpMail oMail = new SmtpMail("TryIt");
            SmtpClient oSmtp = new SmtpClient();

            try
            {
                SmtpServer oServer = new SmtpServer("myserveraddress");

                oMail.From = new MailAddress("from@adminsystem.com" );
                oMail.To.Add( new MailAddress("good@adminsystem.com" ));
                oMail.To.Add( new MailAddress("bad@adminsystem.com" ));
                oMail.Subject = "test subject";
                oMail.TextBody = "test body";
                
                oSmtp.OnRcptToError += new SmtpClient.OnRcptToErrorEventHandler( OnRcptToError );
                oSmtp.SendMail( oServer, oMail );

                Console.WriteLine( "Message was  sent" );
            }
            catch( SmtpTerminatedException exp )
            {
                Console.WriteLine( exp.Message );
            }
            catch( SmtpServerException exp )
            {
                Console.WriteLine( "Exception: Server Respond: {0}", exp.ErrorMessage );
            }
            catch( System.Net.Sockets.SocketException exp )
            {
                Console.WriteLine( "Exception: Networking Error: {0} {1}", exp.ErrorCode, exp.Message );
            }
            catch( System.ComponentModel.Win32Exception exp )
            {
                Console.WriteLine( "Exception: System Error: {0} {1}", exp.ErrorCode, exp.Message );            
            }
            catch( System.Exception exp )
            {
                Console.WriteLine( "Exception: Common: {0}", exp.Message );         
            }
        }
    }
}

[C++]
#include "stdafx.h"
#using <mscorlib.dll>

using namespace System;
using namespace System::Windows::Forms;
using namespace EASendMail;

public __gc class SmtpClientEventHandler
{
public:
static void OnRcptToError( 
                   Object* sender, 
                   String* error,
                   String* rcpt,
                   bool __gc *sendnext,
                   bool __gc *cancel 
                   )
{
    if( MessageBox::Show(String::Format("{0} is rejected by server: {1}, are you want to continue to send the email?", 
        rcpt, error), "Warning", MessageBoxButtons::OKCancel) == DialogResult::OK )
    {
        *sendnext = true;
    }
}
};

void SendMail()
{
    SmtpMail *oMail = new SmtpMail(S"TryIt");
    SmtpClient *oSmtp = new SmtpClient();

    try
    {
        SmtpServer *oServer = new SmtpServer(S"myserveraddress");

        oMail->From = new MailAddress(S"from@adminsystem.com" );
        oMail->To->Add( new MailAddress(S"good@adminsystem.com" ));
        oMail->To->Add( new MailAddress(S"bad@adminsystem.com" ));
        oMail->Subject = "test subject";
        oMail->TextBody = "test body";
        
        oSmtp->OnRcptToError += new SmtpClient::OnRcptToErrorEventHandler( NULL, SmtpClientEventHandler::OnRcptToError );

        oSmtp->SendMail( oServer, oMail );
        Console::WriteLine( S"message was sent" );
    }
    catch( EASendMail::SmtpTerminatedException *exp )
    {
        Console::WriteLine( exp->Message );
    }
    catch( EASendMail::SmtpServerException *exp )
    {
        Console::WriteLine( S"Exception: Server Respond: {0}", exp->ErrorMessage );
    }
    catch( System::Net::Sockets::SocketException *exp )
    {
        Console::WriteLine( S"Exception: Networking Error: {0} {1}", exp->ErrorCode.ToString(S"d"), exp->Message );
    }
    catch( System::ComponentModel::Win32Exception *exp )
    {
        Console::WriteLine( S"Exception: System Error: {0} {1}", exp->ErrorCode.ToString(S"d"), exp->Message );           
    }
    catch( System::Exception *exp )
    {
        Console::WriteLine( S"Exception: Common: {0}", exp->Message );           
    }
}

int _tmain()
{
    SendMail();
    return 0;
}