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

Details about 221.146.139.185

Country: Korea (KR)
Reverse: none
Autonomous System Number: AS4766

Lookup results for 221.146.139.185

No specific incidents regarding 221.146.139.185 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.