If you want to use the Android email app of Samsung Galaxy S6 and use a signature in your outgoing emails, then this article should help you to set up such a signature.
You can like this on the Samsung Galaxy S6 set up a signature:
Open the first thing on your smartphone, the Android email app. Then tap on the overview at the top right "More" and then click Settings. Tap the display window next to the account to which you want to add a signature. You are now in the account settings ÜR the selected account. In the same section you will find the button "signature". Tap on this and Now activate the controller to activate the option.
You can then enter your signature. By default, the signature "Sent from my Samsung Galaxy smartphone".
You now know how to change the signature innderhalb the Android email app on the Samsung Galaxy S6.