DNSBL Spam Check

Checked IP: 81.31.43.64
rDNS/PTR record: mail.master.cz

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: mail.master.cz
64.1890 ms
Inactive: 2
Inactive
Response in: 5.151247 seconds
Amount of searched blacklists: 25 (2 inactive)