DNSBL Spam Check

Checked IP: 91.209.104.21
rDNS/PTR record: fw8001.proofpoint.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: fw8001.proofpoint.com
34.6410 ms
Inactive: 2
Inactive
Response in: 5.122875 seconds
Amount of searched blacklists: 26 (2 inactive)