Exchange 2010: Attachment Size – Global Setting (Send & Receive) By rick | 20/12/2013 0 CommentExchange 2010: Attachment Size – Global Setting (for Send & Receive) – TechNet Articles – United States (English) – TechNet Wiki. As taken from the above link:Go to your Exchange server.Open EMC.Organization Configuration.Hub Transport.Global Settings tab.Edite Transport Settings