DNSBL Spam Check

Checked IP: 23.82.16.245
rDNS/PTR record: smtp1.us.opalstack.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp1.us.opalstack.com
21.9181 ms
Inactive: 2
Inactive
Response in: 5.029494 seconds
Amount of searched blacklists: 26 (2 inactive)