Download message as .eml file

The following example shows you how to download a message to local file system as .eml file (Standard RFC822/MIME file format). On the same way you can download any other item.

C# example

using System;
using System.IO;
using System.Net;
using Independentsoft.Exchange;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");
            Service service = new Service("https://myserver/ews/Exchange.asmx", credential);

            try
            {
                ItemShape itemShape = new ItemShape(ShapeType.Id);
                FindItemResponse inboxItems = service.FindItem(StandardFolder.Inbox, itemShape);

                for (int i = 0; i < inboxItems.Items.Count; i++)
                {
                    ItemId currentItemId = inboxItems.Items[i].ItemId;

                    Message message = service.GetMessage(currentItemId);
                    
                    string mimeContent = message.MimeContent.Text;
                    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(mimeContent);

                    string fileName = "c:\\test\\message" + i + ".eml";

                    FileStream file = new FileStream(fileName, FileMode.Create);
                    
                    using(file)
                    {
                        file.Write(buffer, 0, buffer.Length);
                    }
                }
            }
            catch (ServiceRequestException ex)
            {
                Console.WriteLine("Error: " + ex.Message);
                Console.WriteLine("Error: " + ex.XmlMessage);
                Console.Read();
            }
            catch (WebException ex)
            {
                Console.WriteLine("Error: " + ex.Message);
                Console.Read();
            }
        }
    }
}

VB example

Imports System
Imports System.IO
Imports System.Net
Imports Independentsoft.Exchange

Namespace Sample
    Class Module1
        Shared Sub Main(ByVal args As String())

            Dim credential As New NetworkCredential("username", "password")
            Dim service As New Service("https://myserver/ews/Exchange.asmx", credential)

            Try

                Dim itemShape As New ItemShape(ShapeType.Id)
                Dim inboxItems As FindItemResponse = service.FindItem(StandardFolder.Inbox, itemShape)
                For i As Integer = 0 To inboxItems.Items.Count - 1

                    Dim currentItemId As ItemId = inboxItems.Items(i).ItemId

                    Dim message As Message = service.GetMessage(currentItemId)

                    Dim mimeContent As String = message.MimeContent.Text
                    Dim buffer As Byte() = System.Text.Encoding.UTF8.GetBytes(mimeContent)

                    Dim fileName As String = "c:\test\message" & i & ".eml"

                    Dim file As New FileStream(fileName, FileMode.Create)

                    Using file
                        file.Write(buffer, 0, buffer.Length)
                    End Using
                Next


            Catch ex As ServiceRequestException
                Console.WriteLine("Error: " + ex.Message)
                Console.WriteLine("Error: " + ex.XmlMessage)
                Console.Read()
            Catch ex As WebException
                Console.WriteLine("Error: " + ex.Message)
                Console.Read()
            End Try

        End Sub
    End Class
End Namespace

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Exchange Web Services .NET > Tutorial > Download message as .eml file

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