i can not recieve emails on my phone it worked fine until recently tom
who the provider of the email? the “@email” part
which app are you using?
Have you tried deleting the Yahoo mail app reboot the phone then reinstalling the app. I would then try logging in to the account and see if it has corrected the situation.
a yahoo email but which email app are you using (Yahoo mail, Gmail, or Email, or some other)
due to recent announcements of yahoo account breaches yahoo has made it harder for any app but the yahoo mail app and even then they add more steps to log in, my best advice would be to remove the yahoo account from what ever app your using and re-add it