This article explains how to create an email signature on an iPad, iPhone, or iPod touch running iOS versions 6 or later.
How do I add an email signature on iPhone?
An email signature appears at the bottom of outgoing emails. It can include a name and title, a quote, or information such as a website URL or phone number. Email signatures are set up in the Settings app on iPhone and iPad.
The iPhone's default signature line is "Sent from My iPhone," but you can change this signature to anything you like (or use no signature at all). You can even create an email signature that's different for each of your connected email accounts.
Here's how to set up a simple email signature that will automatically appear at the end of each of your outgoing emails on your iPhone or iPad:
