DNSBL Spam Check

Checked IP: 91.241.72.0
rDNS/PTR record: mail21-0.srv2.de

Not Listed: 27 checks
Check Response time
Found rDNS/PTR: mail21-0.srv2.de
36.7999 ms
Inactive: 2
Inactive
Response in: 4.6395741 seconds
Amount of searched blacklists: 27 (2 inactive)