'pgp-public-keys@informatik.uni-hamburg.de',	# keys.de.pgp.net
	'pgp-public-keys@goliat.upc.es',		# keys.es.pgp.net
	'pgp-public-keys@nic.surfnet.nl',		# keys.nl.pgp.net
	'pgp-public-keys@uit.no',			# keys.no.pgp.net
	'pgp-public-keys@pgp.ox.ac.uk',			# keys.uk.pgp.net
	'pgp-public-keys@pgp.ai.mit.edu',		# keys.us.pgp.net