Aspose.Email  for .NET

MBOX File Viewer for .NET

View MBOX without needing Microsoft Outlook or Thunderbird installed.

How to View MBOX File Using C#

In order to view MBOX file, we’ll use

Aspose.Email for .NET

API which is a feature-rich, powerful and easy to use API for C# platform to be used with any Viewer. 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 View MBOX via C#

Aspose.Email makes it easy for the developers to view the MBOX file with just few lines of code.

  1. Load MBOX file in an instance of MailMessage via Load method
  2. Call the MailMessage.Save method to save MBOX in HTML format
  3. Call Process.Start with path to resultant HTML to load MBOX content in default browser

System Requirements

Aspose.Email for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, and Xamarin Platforms
  • Development environment like Microsoft Visual Studio
  • Aspose.Email for .NET referenced in your project

C# code to view MBOX

string output = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".html";

// load the MBOX file in an instance of MailMessage
using (var message = Aspose.Email.MailMessage.Load("template.mbox"))
    // save MBOX in HTML format
    message.Save(output, Aspose.Email.SaveOptions.DefaultHtml);
// load resultant HTML in default browser
  • About Aspose.Email for .NET API

    Aspose.Email is a Microsoft Outlook and Thunderbird formats parsing solution. One can easily create, manipulate, convert email and storage formats such as MSG, EMLX, EML and MHT. Handling of email attachments, customization of message headers and implementation of different network protocols like POP3, IMAP & SMTP to send & receive emails is much easier. Its a standalone API and does not require Microsoft Outlook or any other software installation.

    Free App to View MBOX

    MBOX What is MBOX File Format

    MBox file format is a generic term that represents a container for collection of electronic mail messages. The messages are stored inside the container along with their attachments. Messages from an entire folder are saved in a single database file and new messages are appended to the end of the file. Numerous applications and API provide support for MBox file format such as Apple Mail and Mozilla Thunderbird.

    Read More

    Other Supported Viewer Formats

    Using C#, One can also view many other file formats including.

    EML (Outlook Email Messages)
    EMLX (Apple EMLX Format)
    ICS (iCalendar)
    MSG (Outlook & Exchange Format)
    OFT (Outlook Email Templates)
    OST (Offline Storage Files)
    PST (Outlook Personal Storage Files)
    VCF (Virtual Card Format)