DNSBL Spam Check

Checked IP: 20.51.229.21
rDNS/PTR record: azure10.sigsync.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: azure10.sigsync.com
13.5820 ms
Inactive: 2
Inactive
Response in: 2.904943 seconds
Amount of searched blacklists: 26 (2 inactive)