Yahoo mail not pushing

Hi there

am using yahoo mail. Yes, I know should have changed to a different mail account a while ago seeing yahoos problems. But apparent from a barrage of spam about 2 years ago, I haven’t had any further major security issues. Still getting minor amounts of spam.

My yahoo mail has stopped sending push mails. I have gone to the password and accounts heading under the settings icon, clicked “fetch new data” which takes me to an accounts section. For some reason, I can only select manual or fetch as notifications for yahoo mail. Push is not an option. Have attached screenshot to evidence this. Can anyone please tell me how to select push yahoo mail. I am using iOS 13.3 on an iPhone 7plus. Thank you