Ok hobby people.
Please Note: that when U open a text to read it the sender's phone outgoing mail Icon changes for that text. It is changed from a closed mail or a closed envelope to open mail or a opened envelope.
If the text is never looked at then the Icon for that text stays as closed mail or a closed envelope on the senders phone..
So when checking a hobby text please note that the sender knows U have opened the text to read it.