DNSBL Spam Check

Checked IP: 51.15.22.227
rDNS/PTR record: smtp-d.critsend.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp-d.critsend.com
40.9100 ms
Inactive: 2
Inactive
Response in: 9.2534201 seconds
Amount of searched blacklists: 26 (2 inactive)