DNSBL Spam Check

Checked IP: 193.135.100.18
rDNS/PTR record: mx-relay04.mailsecurity.swisscom.com

Not Listed: 26 checks
Check Response time
Found rDNS/PTR: mx-relay04.mailsecurity.swisscom.com
41.4410 ms
Inactive: 2
Inactive
Response in: 2.3909431 seconds
Amount of searched blacklists: 26 (2 inactive)