DNSBL Spam Check

Checked IP: 3.74.55.73
rDNS/PTR record: guardpost-n03.euc1.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.
100.9600 ms
Blacklisted: SpamRATS! all
Try to delist your IP from all.spamrats.com
7,113.9522 ms
Not Listed: 24 checks
Check Response time
Found rDNS/PTR: guardpost-n03.euc1.mailgun.co
17.3581 ms
Inactive: 2
Inactive
Response in: 9.272198 seconds
Amount of searched blacklists: 26 (2 inactive)