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

Details about 138.255.180.170

Country: Brazil (BR)
Reverse: none
Autonomous System Number: AS263987

Lookup results for 138.255.180.170

No specific incidents regarding 138.255.180.170 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.