DNSBL Spam Check

Checked IP: 185.158.224.23
rDNS/PTR record: mx04.gisa.de

Listed: 1 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
100.5781 ms
Not Listed: 25 checks
Check Response time
Found rDNS/PTR: mx04.gisa.de
23.0579 ms
Inactive: 2
Inactive
Response in: 3.8390839 seconds
Amount of searched blacklists: 26 (2 inactive)