The DELETE verb only works on Exchange 2003 SP1 - it will not work on any earlier version/service pack. CDOEX, CDO 1.21, Extended MAPI, etc can do this on Exchange 2000 or 2003. One possible work-around is to read the message stream using a WebDAV GET, modify the stream to remove the attachment...

' This example shows how to enumerate attachments on a message. X-MS-ENUMATTS will ' return phantom urls to attachments on the message. These URLs can be used with GET ' and DELETE (starting with Exchange 2003 SP1). ' For listing and reading an attachment, you will first need to get a list of attachments...

'The example below demonstrates how to do a WebDAV PROPPATCH. ' DELETE works against folders and items. This sample shows how to delete a single message. ' NOTE: In versions of Exchange prior to 2003 SP1, you cannot delete an attachment with WebDAV. dim sHREF dim sUserName dim sPassword dim sResponse...

Below is a sample: Here is an example: ' This example deletes all jpg file attachments over a certain size in an inbox. Const CONST_MAX_JPG_ATTACHMENT = 3000 ' TODO: Change this - max jpg file size Dim sErrorMessage As String Dim objSession As MAPI.Session Dim objAttach As MAPI.Attachment Dim strExServer...

Welcome to WebDAV 101. Here you will find information on WebDAV and other Messaging APIS which you might not find elsewhere. WebDAV 101 Training/White Paper: Attached is a document which provides a good introduction to WebDav for Exchange. It's bascily a white paper or training paper on WebDAV...