My university provides a lifelong e-mail address. I added it to my yahoo account ages ago. I don't know whether it has always done this, or whether something has changed in yahoo, but if I send an e-mail it uses my yahoo address to send it, if I reply to an e-mail, it uses my alias. Does anyone know how to fix it so that it uses my alias all the time? I have tryed everything I can think of in settings, but must have missed something. Thank you!