Emails not loading. Any ideas?

I've been having an issue for the past couple months where my emails will not load automatically, but as of today they are not loading at all.

I have an iPhone 6s and I upgraded to the newest iOS (11.2.1) today and it is not helping.

Anybody know of a solution?

I am not even to half capacity on the memory. Any other trouble shooting that might help? Any thoughts would be greatly appreciated.

I'm planning to get a new iPhone next month, but I was hoping I could ride through the holidays with this old puppy!

*e