DNSBL Spam Check

Checked IP: 52.1.21.150
rDNS/PTR record: otransport-17.outbound.emailsrv.net

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: otransport-17.outbound.emailsrv.net
22.8262 ms
Inactive: 2
Inactive
Response in: 4.9946752 seconds
Amount of searched blacklists: 26 (2 inactive)