function.php

<?php 
/**
 * code to trigger comment email on comment submission. 
 */ 
add_action( 'init', 'gd_custom_comment_post' );
function gd_custom_comment_post() {
	remove_action( 'comment_post', 'geodir_new_comment_notify_postauthor', 99999, 1 );
	add_filter( 'geodir_should_notify_comment_author', 'geodir_should_notify_comment_author_custom_callback', 10, 2);
	add_filter( 'geodir_should_notify_listing_author', 'geodir_should_notify_listing_author_custom_callback', 10, 2 );
	add_action( 'comment_post', 'geodir_custom_notify_on_comment_approved', 99999, 1 );
}

function geodir_should_notify_comment_author_custom_callback( $notify, $comment_id ){
	return true; 
}

function geodir_should_notify_listing_author_custom_callback( $notify, $comment_id ){
	return true; 
}

function geodir_custom_notify_on_comment_approved( $comment_ID ){

		$comment = get_comment( $comment_ID );
	
	if ( ! ( ! empty( $comment->comment_post_ID ) && geodir_is_gd_post_type( get_post_type( $comment->comment_post_ID ) ) ) ) {
		return;
	}
	
	$notify_comment_author = geodir_should_notify_comment_author( $comment );
	$notify_listing_author = geodir_should_notify_listing_author( $comment );

	update_option('testme5', $notify_comment_author);
	update_option('testme6', $notify_listing_author);
	
	if ( ! ( $notify_comment_author || $notify_comment_author ) ) {
		return;
	}


	// Notify to comment author
	if ( $notify_comment_author ) {
		update_comment_meta( $comment->comment_ID, 'gd_comment_author_notified', current_time( 'timestamp', 1 ) );

		GeoDir_Email::send_owner_comment_approved_email( $comment );
	}

	// Notify to listing author
	if ( $notify_listing_author ) {
		update_comment_meta( $comment->comment_ID, 'gd_listing_author_notified', current_time( 'timestamp', 1 ) );

		GeoDir_Email::send_author_comment_approved_email( $comment );
	}

	
	return $comment_ID;
}