DNSBL Spam Check

Checked IP: 87.236.209.235
rDNS/PTR record: server20.dn-server.com

Listed: 1 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
27.0181 ms
Not Listed: 25 checks
Check Response time
Found rDNS/PTR: server20.dn-server.com
19.3250 ms
Inactive: 2
Inactive
Response in: 6.1592629 seconds
Amount of searched blacklists: 26 (2 inactive)