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

Details about 37.187.129.166

Country: France, French Republic (FR)
Reverse: ns316491.ip-37-187-129.eu
Autonomous System Number: AS16276

Lookup results for 37.187.129.166

No specific incidents regarding 37.187.129.166 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.