Preventing WooCommerce email sending only on particular conditions

By importing orders from Amazon in WooCommerce and creating WooCommerce orders programmatically, emails for new order or order status changing are sent.

Is it possible to prevent this email sending at least on new order creation?
I could use a condition on a custom field value, but what actions/filters I have to use?

EDIT

I’m testing woocommerce_email_enabled_new_order, woocommerce_email_enabled_customer_completed_order and woocommerce_email_enabled_customer_processing_orderfilters together with custom settings and for now it seems to work.

if you have a custom field or etc just use it to remove the action of your choice below. I wasn’t sure which emails you wanted stopped so i included all but obviously just choose what you need.

If you are doing the import programmatically then you could just include the remove_action lines of your choosing while running the import as well.

add_action( 'woocommerce_email', 'unhook_those_pesky_emails' );

function unhook_those_pesky_emails( $email_class ) {

    /**
     * Hooks for sending emails during store events
     **/
    remove_action( 'woocommerce_low_stock_notification', array( $email_class, 'low_stock' ) );
    remove_action( 'woocommerce_no_stock_notification', array( $email_class, 'no_stock' ) );
    remove_action( 'woocommerce_product_on_backorder_notification', array( $email_class, 'backorder' ) );

    // New order emails
    remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_pending_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_failed_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_failed_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_failed_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );

    // Processing order emails
    remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_Customer_Processing_Order'], 'trigger' ) );
    remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_Customer_Processing_Order'], 'trigger' ) );

    // Completed order emails
    remove_action( 'woocommerce_order_status_completed_notification', array( $email_class->emails['WC_Email_Customer_Completed_Order'], 'trigger' ) );

    // Note emails
    remove_action( 'woocommerce_new_customer_note_notification', array( $email_class->emails['WC_Email_Customer_Note'], 'trigger' ) );
}