I've been a yahoo webmail customer for over twenty years, but recently the email login site blocks me when I'm using my PC, laptop or a public computer PC; eventhough I have 2 step authentication. I'm only able to login from my smartphone which isn't easy especially when I have large attachments or correspondence I need to write in an email. I should be able to chose where I login from as long as the risk is understood. To make things worse Yahoo won't let me submit a trouble ticket to add trusted devices. It makes me want to stop using yahoo email.