DNSBL Spam Check

Checked IP: 51.81.137.244
rDNS/PTR record: mta27.windifferent.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: mta27.windifferent.com
93.8749 ms
Inactive: 2
Inactive
Response in: 3.4727631 seconds
Amount of searched blacklists: 26 (2 inactive)