DNSBL Spam Check

Checked IP:
rDNS/PTR record: mail2.mxb.infra.improvmx.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.
101.2311 ms
Not Listed: 25 checks
Check Response time
Found rDNS/PTR: mail2.mxb.infra.improvmx.com
45.1810 ms
Inactive: 2
Response in: 12.0038199 seconds
Amount of searched blacklists: 26 (2 inactive)