Create .env file
# set 'On' to enable, or 'Off' to disable
DEBUG=Off
# this needs to match $_POST['token'] value sent with request
# you can use some random value from here: https://www.uuidgenerator.net/
TOKEN=
# something like: smtp.gmail.com
SMTP_SERVER=
# You can use 'ssl' (SMTPS) or 'tls' (STARTTLS) encryption with the SMTP Transport
SMTP_ENCRYPTION=tls
# usually 465 for SSL, 587 for TLS
SMTP_PORT=587
SMTP_USER=
SMTP_PASSWORD=
# set this correctly to avoid beeing marked as spam
FROM_EMAIL=
# this will be shown to the receiver, FROM_NAME can be overwritten with $_POST['from_name']
FROM_NAME=