DNSBL Spam Check

Checked IP: 89.207.121.37
rDNS/PTR record: smtp01.knapp.com

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: smtp01.knapp.com
116.6232 ms
Inactive: 2
Inactive
Response in: 5.0039611 seconds
Amount of searched blacklists: 25 (2 inactive)