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Convert EML to MBOX via C#

EML to MBOX C# conversion using .NET API without needing Outlook® or Thunderbird®.

How to Convert EML to MBOX Using C#

In order to convert EML to MBOX, we’ll use

Aspose.Email for .NET

API which is a feature-rich, powerful and easy to use document manipulation and conversion API for C# platform. Open


package manager, search for Aspose.Email and install. You may also use the following command from the Package Manager Console.

<h3>Package Manager Console Command</h3>

PM> Install-Package Aspose.Email

Steps to Convert EML to MBOX via C#

.NET programmers can easily load & convert EML files to MBOX in just a few lines of code.

  • Load EML file with MailMessage.Load.
  • Call the Save method.
  • Pass the output file path with MBOX file extension.
  • MBOX file will be saved at the specified path.

System Requirements

Before running the .NET conversion code, make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, and PHP, VBScript, Delphi, C++ via COM Interop.
  • Development environment like Microsoft Visual Studio.
  • Aspose.Email for .NET DLL referenced in your project.
  • Include namespace in relevant class.

This sample code shows EML to MBOX C# Conversion

using (var message = MailMessage.Load("inputFile.eml")){
	using (var writer = new MboxrdStorageWriter("output.mbox", false)){
  • Free App to Convert EML to MBOX

    Other Supported Conversions

    You can also convert EML into many other file formats including few listed below.

    EML TO EMLX (Apple EMLX Format)
    EML TO HTML (Hyper Text Markup Language)
    EML TO ICS (iCalendar)
    EML TO MHTML (Web Page Archive Format)
    EML TO MSG (Outlook & Exchange Format)
    EML TO OFT (Outlook Email Templates)
    EML TO OST (Offline Storage Files)
    EML TO PST (Outlook Personal Storage Files)
    EML TO VCF (Virtual Card Format)