Download message as .eml file

The following example shows you how to download all messages from Inbox 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.Net;
using System.IO;
using Independentsoft.Webdav.Exchange;
using Independentsoft.Webdav.Exchange.ContentClass;
using Independentsoft.Webdav.Exchange.Properties;
using Independentsoft.Webdav.Exchange.Sql;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");
            WebdavSession session = new WebdavSession(credential);
            session.UserMailbox = "https://myserver/exchange/emailaddress";

            Resource resource = new Resource(session);
            Mailbox myMailbox = resource.Mailbox;

            PropertyName[] propertyName = new PropertyName[1];
            propertyName[0] = MessageProperty.ContentClass;

            Select select = new Select(propertyName);
            From from = new From(myMailbox.Inbox);
            Where where = new Where();

            Condition condition1 = new Condition(MessageProperty.ContentClass, Operator.Equals, ContentClassType.Message);
            where.Add(condition1);

            SqlQuery sqlQuery = new SqlQuery(select, from, where);
            MultiStatus multiStatus = resource.Search(sqlQuery);

            SearchResult searchResult = new SearchResult(multiStatus, propertyName);
            SearchResultRecord[] allRecords = searchResult.Record;

            for (int i = 0; i < allRecords.Length; i++)
            {
                //message URL
                string messageUrl = allRecords[i].Address;

                Console.WriteLine("messageUrl=" + messageUrl);

                FileStream file = new FileStream("c:\\temp\\message" + i + ".eml", FileMode.CreateNew);
                Stream stream = resource.GetInputStream(messageUrl);

                byte[] buffer = new byte[4096];
                int len = 0;

                while ((len = stream.Read(buffer, 0, buffer.Length)) > 0)
                {
                    file.Write(buffer, 0, len);
                }

                file.Close();
                stream.Close();
            }
        }
    }
}

VB example

Imports System
Imports System.IO
Imports System.Net
Imports Independentsoft.Webdav.Exchange
Imports Independentsoft.Webdav.Exchange.ContentClass
Imports Independentsoft.Webdav.Exchange.Properties
Imports Independentsoft.Webdav.Exchange.Sql

Module Module1
    Sub Main(ByVal args() As String)

        Dim credential As NetworkCredential = New NetworkCredential("username", "password")
        Dim session As WebdavSession = New WebdavSession(credential)
        session.UserMailbox = "https://myserver/exchange/emailaddress"

        Dim resource As Resource = New Resource(session)
        Dim myMailbox As Mailbox = resource.Mailbox

        Dim propertyName() As PropertyName = New PropertyName(0) {}
        propertyName(0) = MessageProperty.ContentClass

        Dim selectStatement As Independentsoft.Webdav.Exchange.Sql.Select = New Independentsoft.Webdav.Exchange.Sql.Select(propertyName)
        Dim from As From = New From(myMailbox.Inbox)
        Dim where As Where = New Where

        Dim condition1 As Condition = New Condition(MessageProperty.ContentClass, [Operator].Equals, ContentClassType.Message)
        where.Add(condition1)

        Dim query As SqlQuery = New SqlQuery(selectStatement, from, where)
        Dim multiStatus As MultiStatus = resource.Search(query)

        Dim searchResult As SearchResult = New SearchResult(multiStatus, propertyName)
        Dim allRecords() As SearchResultRecord = searchResult.Record

        Dim i As Integer
        For i = 0 To allRecords.Length - 1
            'message URL
            Dim messageUrl As String = allRecords(i).Address

            Console.WriteLine("messageUrl=" & messageUrl)

            Dim file As FileStream = New FileStream("c:\\temp\\message" & i & ".eml", FileMode.CreateNew)
            Dim stream As Stream = resource.GetInputStream(messageUrl)

            Dim buffer() As Byte = New Byte(4096) {}
            Dim len As Integer = stream.Read(buffer, 0, buffer.Length)

            While (len > 0)
                file.Write(buffer, 0, len)
                len = stream.Read(buffer, 0, buffer.Length)
            End While

            file.Close()
            stream.Close()
        Next

    End Sub
End Module

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