DNSBL Spam Check

Checked IP: 194.104.110.21
rDNS/PTR record: de-smtp-1.mimecast.com

Listed: 1 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
104.5408 ms
Not Listed: 25 checks
Check Response time
Found rDNS/PTR: de-smtp-1.mimecast.com
25.0611 ms
Inactive: 2
Inactive
Response in: 1.7321239 seconds
Amount of searched blacklists: 26 (2 inactive)