Too Much Spam with Yahoo

I've had my Yahoo account for years, even got an email from them once thanking me for my 12 years of being a customer. I use it mostly when I register for a site that I don't fully trust as far as spam. If they are legit later on I move them to my primary account. If you just access the Yahoo account from the web I see nearly no Spam email. However if you use it to access via a phone or computer directly you end up bypassing their spam filters and they are sent through to your spam system.