Notify site admin of My Account address save

add_action( 'woocommerce_after_save_address_validation',
	function( $user_id, $address_type, $address ) {

	$to = get_bloginfo( 'admin_email' );
	$subject = 'Address saved notification';
	$headers = [ 'Content-Type: text/html; charset=UTF-8' ];
	$user = get_user_by( 'id', $user_id );

	$body = sprintf(
		'
			<h1>Automated address change notification</h1>
			<p>User: %s (ID %d)</p>
			<p>Old address (%s):</p>
			<p>%s</p>
			<p>New address:</p>
			<p>%s</p>
		',
		$user->user_login,
		$user_id,
		$address_type,
		wc_get_account_formatted_address( $address_type, $user_id ),
		sprintf(
			'Name: %s %s<br>Company: %s<br>Address: %s %s<br>%s %s %s %s<br>Email: %s<br>Phone: %s',
			esc_attr( $_POST[ $address_type . '_first_name'] ),
			esc_attr( $_POST[ $address_type . '_last_name'] ),
			esc_attr( $_POST[ $address_type . '_company'] ),
			esc_attr( $_POST[ $address_type . '_address_1'] ),
			esc_attr( $_POST[ $address_type . '_address_2'] ),
			esc_attr( $_POST[ $address_type . '_city'] ),
			esc_attr( $_POST[ $address_type . '_state'] ),
			esc_attr( $_POST[ $address_type . '_postcode'] ),
			esc_attr( $_POST[ $address_type . '_country'] ),
			esc_attr( $_POST[ $address_type . '_email'] ),
			esc_attr( $_POST[ $address_type . '_phone'] ),
		)
	);

	wp_mail( $to, $subject, $body, $headers );

}, 10, 3 );