internal();
incoming();

if (compare_extended_field('disable_delivery','eq:r','true')) {
	log (1,'temporary disabled delivery from recipient');
	drop('422','Service temporary not available');
}	
if (compare_extended_field('disable_delivery','eq:s','true')) {
	log (1,'temporary disabled delivery from sender');
	drop('422','Service temporary not available');
	}
if (compare_extended_field('disable_delivery','eq','true')) {
	log (1,'temporary disabled delivery');
	drop('422','Service temporary not available');
	
}