Managed C++ - Send EML File

EML file is e-mail message saved by Microsoft Outlook Express or other e-mail programs; may also contain an e-mail attachment, or file sent with the message.

If you want to load EML file and edit it, you can use SmtpMail.LoadMessage method to load EML file and edit it.

If you do not want to edit the EML file, and you just need to simply forward the EML file to other recipient with 100% original data, then please see the following example codes.

The following example codes demonstrate how to load EML file and forward it to specified recipient.

Installation

Before you can use the following sample codes, you should download the EASendMail Installer and install it on your machine at first.

Add Reference of EASendMail to Managed C++ Project

To use EASendMail SMTP Component in your project, the first step is "Add reference of EASendMail to your project". Please create/open your project with Visual Studio.NET, then choose menu->"Project"->"Add Reference"->".NET"->"Browse...", and choose the EASendMail{version}.dll from your disk, click "Open"->"OK", the reference of EASendMail will be added to your project, and you can start to use EASendMail to send email in your Managed C++ project.

add reference in mc

Because EASendMail has separate builds for .Net Framework, please refer to the following table and choose the correct dll.

Separate builds of run-time assembly for .Net Framework 1.1, 2.0, 3.5, 4.0 and .Net Compact Framework 2.0, 3.5.

File .NET Framework Version
EASendMail.dll Built with .NET Framework 1.1
It requires .NET Framework 1.1, 2.0, 3.5 or later version.
EASendMail20.dll Built with .NET Framework 2.0
It requires .NET Framework 2.0, 3.5 or later version.
EASendMail35.dll Built with .NET Framework 3.5
It requires .NET Framework 3.5 or later version.
EASendMaill40.dll Built with .NET Framework 4.0
It requires .NET Framework 4.0 or later version.
EASendMailCF20.dll Built with .NET Compact Framework 2.0
It requires .NET Compact Framework 2.0, 3.5 or later version.
EASendMailCF35.dll Built with .NET Compact Framework 3.5
It requires .NET Compact Framework 3.5 or later version.

C# | VB6 | Visual Basic.NET | Managed C++ | Visual C++ | Delphi

// The following example codes demonstrate sending EML file using SMTP server
// To get full sample projects, please download and install EASendMail on your machine.
// To run it correctly, please change SMTP server, user, password, sender, recipient value to yours

#include "stdafx.h"

using namespace System;
using namespace System::IO;
using namespace EASendMail;

int main(array<System::String ^> ^args)
{
    SmtpMail ^oMail = gcnew SmtpMail("TryIt");
    SmtpClient ^oSmtp = gcnew SmtpClient();

    // Set sender email address, please change it to yours
    oMail->From = "test@emailarchitect.net";

    // Set recipient email address, please change it to yours
    oMail->To = "support@emailarchitect.net";

    // Your SMTP server address
    SmtpServer ^oServer = gcnew SmtpServer("smtp.emailarchitect.net");

    // User and password for ESMTP authentication, if your server doesn't require
    // User authentication, please remove the following codes.
    oServer->User = "test@emailarchitect.net";
    oServer->Password = "testpassword";

    // If your smtp server requires SSL connection, please add this line
    // oServer->ConnectType = SmtpConnectType::ConnectSSLAuto;

    try
    {
        // Load EML file to a binary data
        FileStream ^fs = gcnew FileStream( "c:\\my folder\\test.eml",
            FileMode::Open, FileAccess::Read, FileShare::Read);

        array<Byte> ^data = gcnew array<Byte>(fs->Length);
        fs->Read(data, 0, fs->Length);
        fs->Close();

        // Forward Eml file with 100% original data
        Console::WriteLine("start to send email from Managed C++...");
        oSmtp->SendRawMail(oServer, data, oMail->From, oMail->To );
        Console::WriteLine("email was sent successfully!");
    }
    catch (Exception ^ep)
    {
        Console::WriteLine("failed to send email with the following error:");
        Console::WriteLine(ep->Message);
    }

    return 0;
}

Comments

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