Notifications
Articles
gform_routing_field_types
gform_pre_send_email
Use this filter to modify the email before a notification has been sent. You may also use this to prevent an email from being sent.
gform_pre_notification_save
gform_notification_validation
gform_notification_ui_settings
gform_notification_settings_fields
The gform_notification_settings_fields filter is used to customize the available settings on the Notification configuration page.
gform_notification_services
Additional code is necessary to handle having the service actually send the notification email since this hook only makes the choice available to the user for selection when configuring their notifications.