For Email its in each of the accounts that you have set up. If you goto the inbox of the email hit Menu/more/settings. You will find the signatures there. For Text, I am unable to locate that. I wasn't aware that you could add a signature to text msgs. I will look into that further. From what I have found it looks like you are not able to add signatures to text messages. There is a third party app out there called handsent that will let you do it though. I have never used it be that is what search brought up. If you did set it....FIND THE SETTING hehe....and share!!!