17 DNS MX record assets at relay2.uni-heidelberg.de.
mathphys.info
echo-wall.org
echo-wall.eu
echowall.net
echo-wall.de
ph-heidelberg.de
bwvisu.de
imgb.de
echo-wall.info
hadw-bw.de
materiale-textkulturen.org
echo-wall.net
uni-heidelberg.de
echowall.info
echowall.org
uni-hd.de
heikametrics.de