A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!
Details about 150.161.21.38
Country: Brazil (BR)
Reverse: none
Autonomous System Number: AS1916
Lookup results for 150.161.21.38
No specific incidents regarding 150.161.21.38 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.