DNSBL Spam Check

Checked IP: 72.3.252.136
rDNS/PTR record: smtp2-ext.dfw1.corp.rackspace.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: smtp2-ext.dfw1.corp.rackspace.com
245.6229 ms
Inactive: 2
Inactive
Response in: 8.843847 seconds
Amount of searched blacklists: 26 (2 inactive)