A listing in DroneBL is NOT always related to spam. But in most cases because of an open proxy !!!
Details about 18.234.199.99
Country: United States of America (US)
Reverse: ec2-18-234-199-99.compute-1.amazonaws.com
Autonomous System Number: AS14618
Lookup results for 18.234.199.99
No specific incidents regarding 18.234.199.99 were found in DroneBL's incident tracking system. This means that your IP is not listed in DroneBL.