DNSBL Spam Check

Checked IP: 3.21.251.53
rDNS/PTR record: smtp3d.sendmetric.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp3d.sendmetric.com
26.3479 ms
Inactive: 2
Inactive
Response in: 5.628293 seconds
Amount of searched blacklists: 26 (2 inactive)