The types of environment variables that are passed to the Open-Xchange configuration scripts by a Controller are as follows:
SETTINGS_ox_host
SETTINGS_ox_site
SETTINGS_ox_master_admin
SETTINGS_ox_master_password
SETTINGS_admin_login
SETTINGS_admin_password
SETTINGS_admin_email
SETTINGS_admin_given_name
SETTINGS_admin_surname
SETTINGS_organization_name
SETTINGS_filestore_quota
OLDSETTINGS_admin_password
SETTINGS_user_login
SETTINGS_user_password
SETTINGS_user_email
SETTINGS_user_given_name
SETTINGS_user_surname
PHP_VERSION
MAIL_account_EMAIL
MAIL_account_IMAP_HOST
MAIL_account_IMAP_MAILBOX
MAIL_account_IMAP_PORT
MAIL_account_IMAP_PORT_SSL
MAIL_account_PASSWORD
MAIL_account_POP3_HOST
MAIL_account_POP3_PORT
MAIL_account_POP3_PORT_SSL
MAIL_account_SMTP_HOST
MAIL_account_SMTP_PORT
MAIL_account_SMTP_PORT_SSL
MAIL_account_USER