Go to Settings > Accounts > New Account
   Select “Email”
   Enter your email address and password
   UNCHECK the option to automatically configure your account
   Next
   Select General Settings 
   Account Name Enter your name 
   Real Name: your email address 
   Email Address: your email address again 
   Select OK
   Select Incoming Server
   Tap where it says “POP Mail Server” and select “IMAP Mail Server”
Continue Reading How to manually add custom email account on your android devices