I figured out the problem. When I was sending mail, I was using my app for yahoo mail or gmail. When I sent mail with Yahoo it says.........'Sent from Yahoo mail for iPhone.' When I sent mail with Gmail it says .........'Sent from Yahoo mail for iPhone.' But when I use the Mail APP from Apple it has my signature.....sent from my Silver iPhone7. And I get the swoosh as well..... It worked all the time. I was just using the wrong function. BTW.... Do you use Siri very often ? I was clowning around this afternoon and I asked it how much wood could a wood chuck chuck if it could chuck wood? And Siri said African or European? And I said African and she went into this diatribe about woodchucks chucking wood if they could........etc........it was funny. At least I was amused. Thanks for your help.