I'm surprised to notice all my emails have been disappeared. I googled and found that after 12 months of inactivity all emails are deleted. You should have sent an email to the connected email (the one used for password recovery or just now it's used for security verification code while signing in) that we should sign in to our yahoo email if we don't want our all emails get deleted. This is the very first time I've experienced something like this that made me think either this isn't my email or that must be a joke