DNSBL Spam Check

Checked IP: 23.247.50.23
rDNS/PTR record: no entry

Listed: 5 findings
Finding Response time
No rDNS/PTR found
Set PTR record for this IP
155.8251 ms
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
26.8090 ms
Blacklisted: SpamRATS! all
Try to delist your IP from all.spamrats.com
117.6300 ms
Blacklisted: SORBS Aggregate zone (problems)
Try to delist your IP from problems.dnsbl.sorbs.net
Follow the instrucion on this website.
22.6290 ms
Blacklisted: SORBS Spamhost (any time)
Try to delist your IP from spam.dnsbl.sorbs.net
Follow the instrucion on this website.
136.8260 ms
Blacklisted: Spamhaus ZEN
Try to delist your IP from zen.spamhaus.org
Follow the instrucion on this website.
24.1511 ms
Not Listed: 21 checks
Check Response time
Inactive: 2
Inactive
Response in: 2.4554808 seconds
Amount of searched blacklists: 26 (2 inactive)