DNSBL Spam Check

Checked IP: 52.101.68.16
rDNS/PTR record: mail-db4pr02cu00400.inbound.protection.outlook.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: mail-db4pr02cu00400.inbound.protection.outlook.com
4.7669 ms
Inactive: 2
Inactive
Response in: 5.0931151 seconds
Amount of searched blacklists: 26 (2 inactive)