How do I create and add a new folder to an email account?

You must have an IMAP email account in order to add additional folders on the iPad mail app.

If you go to your email account in the Mail app and look at the window where your inbox, trash folder and sent folder are - if there is an Edit button at the top of the window - tap that and then tap Add Mailbox at the bottom.

If the Edit button is not there - you cannot create folders on the iPad. Your email account is not IMAP. Only IMAP email accounts can create folders on the iPad. Any folders that you would already have in an IMAP account would sync to the device as well.

On the off chance that your email provider is Comcast, you can download the Xfinity Connect app for your email and even though it is a POP account, it allows you to create folders that will sync with the server. I'm not sure why or how it works, but it does, because that is my primary email provider, and I use folders within the app itself.