DNSBL Spam Check

Checked IP: 52.101.170.1
rDNS/PTR record: mail-fr4p281cu03101.inbound.protection.outlook.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: mail-fr4p281cu03101.inbound.protection.outlook.com
44.0559 ms
Inactive: 2
Inactive
Response in: 18.7855389 seconds
Amount of searched blacklists: 26 (2 inactive)