DNSBL Spam Check

Checked IP: 2a01:4f8:c17:b1b6::1
rDNS/PTR record: mail1.berlinonline.net

Not Listed: 25 checks
Check Response time
Found rDNS/PTR: mail1.berlinonline.net
8.2240 ms
Inactive: 2
Inactive
Response in: 7.1348329 seconds
Amount of searched blacklists: 25 (2 inactive)