DNSBL Spam Check

Checked IP: 52.249.26.186
rDNS/PTR record: relaysc01.optimalblue.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: relaysc01.optimalblue.com
17.9751 ms
Inactive: 2
Inactive
Response in: 5.252085 seconds
Amount of searched blacklists: 26 (2 inactive)