I can't add an additional email on my way NOTE 4

[AC Question]

Authentication always fail when trying to setup additional email accounts

 

[B. Diddy]

Welcome to Android Central! Which email provider? Are you certain you're entering the correct password? Is it a Yahoo Mail account? If it's Yahoo, make sure you turn off the security setting for your account as described here: https://help.yahoo.com/kb/SLN27791.html