DNSBL Spam Check

Checked IP: 81.21.176.90
rDNS/PTR record: zensmtp13p.magister.net

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: zensmtp13p.magister.net
106.8170 ms
Inactive: 2
Inactive
Response in: 24.738142 seconds
Amount of searched blacklists: 25 (2 inactive)