DNSBL Spam Check

Checked IP: 66.240.227.21
rDNS/PTR record: mta2-21.email.clickdimensions.com

Listed: 2 findings
Finding Response time
Blacklisted: Redhawk.org
Try to delist your IP from access.redhawk.org
160.4459 ms
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
100.4930 ms
Not Listed: 24 checks
Check Response time
Found rDNS/PTR: mta2-21.email.clickdimensions.com
13.4511 ms
Inactive: 2
Inactive
Response in: 5.053453 seconds
Amount of searched blacklists: 26 (2 inactive)