A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!

Details about 127.0.0.1

Country: unknown
Reverse: localhost.localdomain
Autonomous System Number: none/unknown

Lookup results for 127.0.0.1

No specific incidents regarding 127.0.0.1 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.