I have Exchange set up on my iPhone and receive emails from my main address plus my two aliases. The problem is when I send an email, it is sent from one of my aliases and not the primary email address. I've tried deleting and re-connecting the account, plus have gone through my e-mail settings to double check the primary e-mail is set as I want it, to no avail. Is there an option other than deleting the alias that the emails are being sent from?