DNSBL Spam Check

Checked IP: 2a01:7e01:0:0:f03c:92ff:fe05:ba9b
rDNS/PTR record: smtp2.de.opalstack.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp2.de.opalstack.com
54.7869 ms
Inactive: 2
Inactive
Response in: 1.9101369 seconds
Amount of searched blacklists: 26 (2 inactive)