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

Details about 121.205.85.135

Country: China (CN)
Reverse: 135.85.205.121.broad.qz.fj.dynamic.163data.com.cn
Autonomous System Number: AS4134

Lookup results for 121.205.85.135

No specific incidents regarding 121.205.85.135 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.