IMAP_EMAIL: enter your email address (email@gmail.com).
IMAP_PASSWORD: enter your email password (password123)
if you are using GMAIL make sure to use an "app password" which can be obtained here: https://myaccount.google.com/apppasswords and enter it in the imap_password option.
IMAP_HOST: enter your IMAP host (imap.gmail.com)
IMAP_PORT: enter your IMAP port (993), the port has to require SSL connections.