DNSBL Spam Check

Checked IP: 81.91.85.20
rDNS/PTR record: d340.server4u.cz

Listed: 2 findings
Finding Response time
Blacklisted: Barracuda Reputation Block List
Try to delist your IP from b.barracudacentral.org
Follow the instrucion on this website.
215.6460 ms
Blacklisted: Barracuda Reputation Block List (for SpamAssassin)
Try to delist your IP from bb.barracudacentral.org
221.9911 ms
Not Listed: 23 checks
Check Response time
Found rDNS/PTR: d340.server4u.cz
130.5649 ms
Inactive: 2
Inactive
Response in: 5.3516409 seconds
Amount of searched blacklists: 25 (2 inactive)