Question: How can I be sure to never get my e mail address wrong when using my phone?
Option 0: Go to the smartphones dictionary and enter your e mail address as a word.  That way every time you mis enter the address the autocorrect will notify you of your mistake as you type it in.
Option 1: Go to the Televisions dictionary and enter your e mail address as a word.  That way every time you mis enter the address the autocorrect will notify you of your mistake as you type it in.
Answer: 0