J1 How To Stop Yahoo/Google Mail notifications?

Every time I switch my J1 on I get a constant stream of advices that a message has arrived. Usually from Yahoo mail.

I want the ability to send an email whenever but I don't want the machine constantly phoning the internet to get it and I don't want to be told about every new spam message that arrives in my inbox.

My desktop doesn't do that and I don't want it on the J1.

Must I uninstall Yahoo mail to do that? Or can it be switched on or off or something? I have looked but failed to...

J1 How To Stop Yahoo/Google Mail notifications?

from Android Authority Forums http://ift.tt/2bI5j1c
via IFTTT