There are a few different ways that you can go about putting your Yahoo email on your phone. One option is to download the Yahoo Mail app from the App Store. This will allow you to access your email directly from your phone.
Another option is to set up your Yahoo email account through the built-in Mail app on your iPhone. To do this, you’ll need to enter your account information into the appropriate fields under the “Accounts” section in the Settings app.
Once you’ve entered your account information, you should be able to access your Yahoo email from the Mail app on your iPhone.