IP Address: 205.220.185.65 ⚠ Network Confounder

⚠ Network Confounder Detected: Proofpoint Email Security
Proofpoint network identifier

This page shows DMARC authentication failure data for this IP address. Learn more about this data.

Geolocation Information

Country:: NL The Netherlands
Region:: North Holland
City:: Amsterdam
Coordinates:: 52.3759, 4.8975

WHOIS Information

Network Name:: PROOF
CIDR:: 205.220.160.0/19
Owner:: Proofpoint, Inc.
Org ID:: PROOF
Address:: 925 W Maude Ave, Sunnyvale, CA 94085
Reverse DNS:: mx08-000f8e02.pphosted.com
Last updated: 2/5/2026

Analysis

This IP was observed on a single date: September 20, 2024. It has been associated with 1 failed authentication event affecting 1 message — a single isolated event. The IP belongs to PROOF (Proofpoint, Inc.), a network with activity associated with The Netherlands.

Failures Detected from this IP

Showing 1-1 of 1 failures, affecting 1 message

Date ▼	Messages
9/20/2024	1

External Reputation Lookups

Look up this IP in external threat intelligence and reputation databases (opens in new tab):

AbuseIPDB Cisco Talos Project Honey Pot GreyNoise VirusTotal Shodan Censys Spamhaus