DNSBL Spam Check

Checked IP: 172.104.17.67
rDNS/PTR record: 172-104-17-67.ip.linodeusercontent.com

Listed: 2 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
26.1328 ms
Blacklisted: Spamhaus ZEN
Try to delist your IP from zen.spamhaus.org
Follow the instrucion on this website.
3.1738 ms
Not Listed: 24 checks
Check Response time
Found rDNS/PTR: 172-104-17-67.ip.linodeusercontent.com
23.1299 ms
Inactive: 2
Inactive
Response in: 5.3157561 seconds
Amount of searched blacklists: 26 (2 inactive)