Galaxy Note 4 Email not syncing...How do I fix?

[AC Question]

Want to make my emails sync again. Don't know why they stopped and cannot figure out how to fix.

 

[IAmSixNine]

Stock email app, gmail app, yahoo mail app?
Is your device stock or rooted?
covered the basics? data turned on? power cycled the device? gone into sync and made sure sync is on and mail is checked?