Sh4mefulIP Address: 139.138.34.101 ⚠ Network Confounder
Cloud Email Security sometimes breaks SPF and DKIM at the endpoint. Unclear if this is a configuration issue or byproduct the interception of email
This page shows DMARC authentication failure data for this IP address. Learn more about this data.
Geolocation Information
- Country:
- US United States
- Coordinates:
- 37.751, -97.822
WHOIS Information
- Network Name:
- CISL-7
- CIDR:
139.138.32.0/20, 139.138.24.0/21- Owner:
- Cisco Systems Ironport Division
- Org ID:
CISL-7- Address:
- 170 West Tasman Drive, San Jose, CA 95134
Analysis
This IP was observed on a single date: October 30, 2024. It has been associated with 1 failed authentication event affecting 1 message — a single isolated event. The IP belongs to CISL-7 (Cisco Systems Ironport Division), a network with activity associated with United States. 2 other IPs in the same /24 subnet (139.138.34.*) also appear in this dataset.
Network Topology
External Reputation Lookups
Look up this IP in external threat intelligence and reputation databases (opens in new tab):
Nearby IPs
Other IPs in the 139.138.34.0/24 range observed failing DMARC:
139.138.34.153 (27 failures), 139.138.34.173 (11 failures)