Few of our customer reported that they are getting HTTP 404 Error reported; when they tries to use EWS HTTP service endpoint for their application for Exchange Server 2010. However, the same application work fine with EWS HTTP service endpoint with Exchange Server 2007 without any issue.
If we go into Internet Information Services (IIS) on Exchange 2010 RTM and uncheck the box 'Require secure channel (SSL)' on the EWS virtual directory. And then we attempt to make a request using HTTP using EWS service endpoint as “http://host:port/EWS/Exchange.asmx” then we would receive a HTTP 404 Resource Not Found.
Exchange 2010 Web Services are now based on Windows Communication Foundation (WCF). We receive a HTTP 404 because WCF attempts to locate the endpoint for HTTP but cannot find it and throws a System.ServiceModel.EndpointNotFoundException exception which throws up to the client as a 404 exception.
Using HTTP instead of HTTPS is not the recommended approach for Exchange Web Services but sometimes it is helpful in debugging/troubleshooting to have this option.
Here are the steps posted by my colleague Dave @ How to configure a HTTP endpoint for Exchange Web Services in Exchange 2010 to workaround the issue.
If you would like to clear up some old items from the growing PST attached to you Outlook profile; then here is a sample VBA macro code snippet to accomplish the job using CDO 1.21.
NOTE: Following programming examples is for illustration only, without warranty either 'expressed or implied, including, but not limited to, the implied warranties of 'merchantability and/or fitness for a particular purpose. This sample code assumes that you 'are familiar with the programming language being demonstrated and the tools used to create 'and debug procedures. This sample code is provided for the purpose of illustration only 'and is not intended to be used in a production environment.
'We need to add reference to Collaboration Data Objects, version 1.2.1 before running the VBA macro
Dim ol As Outlook.Application
Dim olns As Outlook.NameSpace
Dim colStores As Outlook.Stores
Dim oStore As Outlook.Store
Dim oRoot As Outlook.Folder
Dim ocal As Outlook.Folder
Set ol = Application
Set olns = ol.GetNamespace("MAPI")
Set colStores = olns.Application.Session.Stores
For Each oStore In colStores
Set oRoot = oStore.GetRootFolder
If oStore.ExchangeStoreType = 3 Then 'And oRoot = "Test" Then
Public Function EnumerateFolders(ByVal objFld As Outlook.Folder)
Dim folders As Outlook.folders
Dim Folder As Outlook.Folder
Dim foldercount As Integer
Set folders = objFld.folders
foldercount = folders.Count
'Check if there are any folders below oFolder
If foldercount Then
For Each Folder In folders
Public Function DeleteOldItems(ByVal objfl As Outlook.Folder)
Dim oItems As Outlook.items
Dim i As Long
Set oItems = objfl.items
Dim oRT As Date
For i = oItems.Count To 1 Step -1
oRT = oItems.Item(i).ReceivedTime
'Checking for 4 months old items
If DateDiff("m", oRT, Now()) >= 4 Then
Debug.Print "Old item found"
'Uncomment the below line to delete this item
If you are running Outlook 2007 then you need to download and install CDO 1.21 @ Collaboration Data Objects, version 1.2.1
Hope this helps! Happy Holidays :)