Robtex

Up: 81.89.246.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 81.89.246.128/26
Down right: 81.89.246.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.89.246.129	A+PTR	smail-shatap2.dts-security.de
81.89.246.131	A+PTR	smail-shatap.dts-security.de
81.89.246.131	A	mailgateway.geuther.com
81.89.246.132	A	smail-nee.dts-security.de
81.89.246.133	A+PTR	mmdb1.dts-security.de
81.89.246.133	A+PTR	mmrelay02.dts-security.de
81.89.246.133	A	smail-cpb.dts-security.de
81.89.246.134	A+PTR	smail-slr.dts-security.de
81.89.246.135	A+PTR	smail-kin.dts-security.de
81.89.246.136	A+PTR	smail-epp.dts-security.de
81.89.246.136	A	mail.eppendorf.eu
81.89.246.136	A	mail.eppendorf.de
81.89.246.137	A+PTR	smail-ics.dts-security.de
81.89.246.137	A	sekura-schloss.de
81.89.246.137	A	funtonic.com
81.89.246.138	A+PTR	vhost1.maria.de
81.89.246.138	A+PTR	smail-icstap.dts-security.de
81.89.246.141	A+PTR	mail1.managed-network.de
81.89.246.141	A	smail-lwv.dts-security.de
81.89.246.142	A	sslsecure.dts-security.de
81.89.246.143	PTR	mailrelay.laudert.de
81.89.246.143	A	smail-kpl.dts-security.de
81.89.246.144	A+PTR	mmlb02.dts-security.de
81.89.246.144	A	mx01.vonovia.de
81.89.246.144	A	mx01.deutsche-annington.com
81.89.246.146	PTR	smail-kkh.dts-security.de
81.89.246.146	A	mail.marley.de
81.89.246.147	A+PTR	mmlb201.dts-security.de
81.89.246.147	A	smail-med.dts-security.de
81.89.246.148	A	mmlb202.dts-security.de
81.89.246.148	A	mail.jackodur.de
81.89.246.149	A+PTR	smail-kwd.dts-security.de
81.89.246.150	A	sdvwh.dts-security.de
81.89.246.151	A+PTR	smail-fri.dts-security.de
81.89.246.152	A+PTR	spamguard.dvinci.net
81.89.246.155	A+PTR	smail-kat.dts-security.de
81.89.246.156	A+PTR	smail-bcw.dts-security.de
81.89.246.157	A+PTR	smail-thy.dts-security.de
81.89.246.158	A	smail-sal.dts-security.de
81.89.246.159	A	notification.dts.de
81.89.246.159	A	smail-hue.dts-security.de
81.89.246.160	A	mail.schomburg.de
81.89.246.161	A+PTR	smail-shatap-mta1.dts-security.de
81.89.246.162	A+PTR	smail-shatap2-mta1.dts-security.de
81.89.246.164	A+PTR	smail-wfl-mta1.dts-security.de
81.89.246.165	A	smail-emg.dts-security.de
81.89.246.167	A	mmdb2.dts-security.de
81.89.246.168	A	relaycluster2.dts-security.de
81.89.246.169	A+PTR	smail-hpsm.dts-security.de
81.89.246.171	A+PTR	smail.it-xy.de
81.89.246.171	A	mail.cyrus-beratung.de
81.89.246.172	A+PTR	smail-pie.dts-security.de
81.89.246.173	A+PTR	smail-sti.dts-security.de
81.89.246.178	A+PTR	relaycluster.dts-security.de
81.89.246.178	A	mailrelay.dts-security.de
81.89.246.178	A	smail-emk.dts-security.de
81.89.246.200	A+PTR	smail-sap.dts-security.de
81.89.246.201	A+PTR	smail-alt.dts-security.de