DNSBL Spam Check

Checked IP: 20.59.80.4
rDNS/PTR record: mail-nam-cu02-by.westus.cloudapp.azure.com

Listed: 4 findings
Finding Response time
Blacklisted: usenix.org
Try to delist your IP from all.s5h.net
Follow the instrucion on this website.
101.7051 ms
Blacklisted: SpamRATS! all
Try to delist your IP from all.spamrats.com
125.3929 ms
Blacklisted: SORBS Aggregate zone (problems)
Try to delist your IP from problems.dnsbl.sorbs.net
Follow the instrucion on this website.
22.7439 ms
Blacklisted: SORBS Spamhost (any time)
Try to delist your IP from spam.dnsbl.sorbs.net
Follow the instrucion on this website.
22.9311 ms
Not Listed: 22 checks
Check Response time
Found rDNS/PTR: mail-nam-cu02-by.westus.cloudapp.azure.com
12.5780 ms
Inactive: 2
Inactive
Response in: 2.75418 seconds
Amount of searched blacklists: 26 (2 inactive)