DNSBL Spam Check

Checked IP: 172.234.21.247
rDNS/PTR record: 172-234-21-247.ip.linodeusercontent.com

Listed: 1 findings
Finding Response time
Blacklisted: Spamhaus ZEN
Try to delist your IP from zen.spamhaus.org
Follow the instrucion on this website.
20.9689 ms
Not Listed: 25 checks
Check Response time
Found rDNS/PTR: 172-234-21-247.ip.linodeusercontent.com
13.4931 ms
Inactive: 2
Inactive
Response in: 6.90569 seconds
Amount of searched blacklists: 26 (2 inactive)