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

Details about 189.123.91.163

Country: Brazil (BR)
Reverse: bd7b5ba3.virtua.com.br
Autonomous System Number: AS28573

Lookup results for 189.123.91.163

No specific incidents regarding 189.123.91.163 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.