You can't connect email accounts that don't support secure connections.
You can import messages from another email account, but not any folders or labels.
Your other email account needs to have pop.
A google account gives you access to many google products.
With a google account, you can do things like:
Send and receive email using gmail
Sign in to gmail tip:
If you sign in to a public computer, make sure to sign out before you leave the computer.
Learn how to sign in on a device that's not yours.