The steps documented to turn-off Notifications are not available anymore. This is what I found on Yahoo Help website

Turn notifications on or off from the Yahoo Mail app
Tap the Profile icon.
Tap Notifications.
Tap to enable or disable notifications for All messages & features or Just the categories I choose.

If you select Just the categories I choose, tap the toggles to enable the types of notifications you’d like to receive.

But when I clicked my profile, the "Notifications" tab or sub-menu are not showing anymore so I cannot turn off
I see Account Security/ Devices Notifications / but I was able to turn it off
However I still get notifications to my recovery email address!!

the only choice i had was to remove my recovery email address which was my office email. i cannot receive personal emails at my office corporate email as per corporate rules. Hence the Yahoo notifications are not welcome when sent to my recovery email address which is my office email. By removing the recovery email i hope to get rid of all these pesky yahoo notifications emails i was getting.

please supply a way for stopping notifications sent to recovery email