DNSBL Spam Check

Checked IP: 23.106.47.103
rDNS/PTR record: smtp2.us.opalstack.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp2.us.opalstack.com
30.3900 ms
Inactive: 2
Inactive
Response in: 1.8966999 seconds
Amount of searched blacklists: 26 (2 inactive)