DNSBL Spam Check

Checked IP: 173.228.157.40
rDNS/PTR record: pb-mx21.pobox.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: pb-mx21.pobox.com
1,199.7600 ms
Inactive: 2
Inactive
Response in: 6.4994099 seconds
Amount of searched blacklists: 26 (2 inactive)