A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!
Details about 113.121.74.217
Country: China (CN)
Reverse: none
Autonomous System Number: AS4134
Lookup results for 113.121.74.217
No specific incidents regarding 113.121.74.217 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.