A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!
Details about 178.219.2.21
Country: Serbia (RS)
Reverse: ip-178-219-2-21.oriontelekom.rs
Autonomous System Number: AS28964
Lookup results for 178.219.2.21
No specific incidents regarding 178.219.2.21 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.