I get my mail on my phone but can't access on my computer?

Can you send emails from the computer?

Troubleshooting Apple Mail

What does Mail/Window/Connection Doctor Show? If the server is red, select it and look at the Show Details box.

Mail: Mail troubleshooting 

Mail: If you can’t receive messages.    

Mail: If you can’t send messages.   

Troubleshooting sending email messages    

Mail not sending or receiving messages after updating OS X.      

SloanLily500 wrote:

I get my emails on my phone but not my computer. What do I need to do to fix this?

Maybe your email provider can assist you.

Did you try the troubleshooting steps I posted above? Have you checked your Junk mail folder?