Reading of Mails by using of Exchange Web Service

        /// <summary>
        /// Retrieves the mails from mail box.
        /// </summary>
        /// <param name="startIndex">Firts mail to retrieve.</param>
        /// <param name="maxItems"></param>
        /// <param name="nextItem"></param>
        /// <returns></returns>
        public List<ItemType> GetItems(int startIndex, int maxItems, out int nextItem)
        {  
            //
            // Here we setup the paging
            IndexedPageViewType pagedView = new IndexedPageViewType();
            pagedView.BasePoint = IndexBasePointType.Beginning;
            pagedView.MaxEntriesReturned = maxItems;
            pagedView.MaxEntriesReturnedSpecified = true;
            pagedView.Offset = startIndex;

            //
            // Here we decide to read inbox.
            DistinguishedFolderIdType inbox = new DistinguishedFolderIdType();
            inbox.Id = DistinguishedFolderIdNameType.inbox;
          
            //
            // We want to retrieve mails with more or less all properties
            FindItemType findReq = new FindItemType();
            findReq.ItemShape = new ItemResponseShapeType();
            findReq.ItemShape.BaseShape = DefaultShapeNamesType.AllProperties;
           
            // Retrieve by using of paging.
            findReq.Item = pagedView;

            // Retrieve the inbox items
            findReq.ParentFolderIds = new BaseFolderIdType[] { inbox };
            findReq.Traversal = ItemQueryTraversalType.Shallow;

            // Send request
            FindItemResponseType response = this.serviceProxy.FindItem(findReq);

            FindItemResponseMessageType responseMessage =
            response.ResponseMessages.Items[0] as FindItemResponseMessageType;

            if (responseMessage.ResponseCode != ResponseCodeType.NoError)
            {
                throw new Exception(responseMessage.MessageText);
            }
            else
            {
                //
                // Here we read mails.
                //

                nextItem = responseMessage.RootFolder.IncludesLastItemInRange ? -1 :
                responseMessage.RootFolder.IndexedPagingOffset;

                ArrayOfRealItemsType items = responseMessage.RootFolder.Item as
                ArrayOfRealItemsType;
                if (items.Items == null)
                {
                    return new List<ItemType>();
                }

                List<ItemType> mailList = new List<ItemType>(items.Items.Length);

                foreach (ItemType item in items.Items)
                {
                    mailList.Add(item);
                }

                return mailList;
            }
        }