Daily count of unique source IP addresses observed sending smtpdata.txt traffic to Dataplane.org sensors.
Signal data represents passive observation only - IP addresses that sent unsolicited traffic to Dataplane.org sensor infrastructure. These are informational indicators, not block-list recommendations. Data is provided as-is; accuracy depends on sensor coverage and collection methodology.
Sensor infrastructure, bandwidth, and engineering time keep this data flowing freely. Your support makes it possible.