DNSBL Spam Check

Checked IP: 144.202.243.25
rDNS/PTR record: mx1.sterlinginfosystems.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: mx1.sterlinginfosystems.com
337.7740 ms
Inactive: 2
Inactive
Response in: 2.0012982 seconds
Amount of searched blacklists: 26 (2 inactive)