cune.org email is hosted by Google. The easiest way to configure your device to access your email account is to do an Internet search for your model of phone. These are some example search phrases.
iphone configure gmail
android configure gmail
Newer devices might already have a Gmail button in the email configuration section that will walk you through the steps. If a Gmail account has already been configured on your device, you will need to add another account. Search the Internet for a phrase like the following.
android configure multiple gmail accounts