DNSBL Spam Check

Checked IP: 3.222.100.56
rDNS/PTR record: guardpost-n05.use1.mailgun.co

Listed: 2 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
23.7920 ms
Blacklisted: SpamRATS! all
Try to delist your IP from all.spamrats.com
109.8301 ms
Not Listed: 24 checks
Check Response time
Found rDNS/PTR: guardpost-n05.use1.mailgun.co
21.4291 ms
Inactive: 2
Inactive
Response in: 1.8275352 seconds
Amount of searched blacklists: 26 (2 inactive)