DNSBL Spam Check

Checked IP: 111.90.133.171
rDNS/PTR record: server4-ip21.mailsentinel.net

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: server4-ip21.mailsentinel.net
329.2491 ms
Inactive: 2
Inactive
Response in: 8.463583 seconds
Amount of searched blacklists: 25 (2 inactive)