I created a website for a friend and i set the contact email to reply any client automatically as soon as they submit ticket. However I tested it and i went to the yahoo mail which i used and i copied the header and after analyzing it I found this ***s please i want to know what does that code mean. Can it be used to track the owner of the websitex5? that is the message ID. Normally message ID comes from the server or smtp sending it but i was surprise to see that.