A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!
Details about 14.207.21.175
Country: Thailand (TH)
Reverse: mx-ll-14.207.21-175.dynamic.3bb.in.th
Autonomous System Number: AS45758
Lookup results for 14.207.21.175
No specific incidents regarding 14.207.21.175 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.