DNSBL Spam Check

Checked IP: 217.28.100.200
rDNS/PTR record: mta20.qfox.email

Listed: 1 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
41.3780 ms
Not Listed: 24 checks
Check Response time
Found rDNS/PTR: mta20.qfox.email
200.9501 ms
Inactive: 2
Inactive
Response in: 6.5488892 seconds
Amount of searched blacklists: 25 (2 inactive)