Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection 🦋 Bluesky

IP Address: 187.36.123.154

The data here is from DMARC analysis for domains I administer, drawn from a larger dataset (comprising millions of authentication records and messages). These entries are from email attempts that failed both SPF and DKIM (and there are often alignment issues - hidden here). In many cases, these failures indicate unauthorized use of the domain name, and are commonly associated with spoofing, phishing, or other abusive mail activity.

(More)

Geolocation Information
Country:
BR Brazil
Region:
Mato Grosso do Sul
City:
Campo Grande
Coordinates:
-20.4428, -54.6464
WHOIS Information
Network Name:
Claro NXT Telecomunicacoes Ltda
CIDR:
187.36.0.0/14
Owner:
Claro NXT Telecomunicacoes Ltda
Reverse DNS:
bb247b9a.virtua.com.br
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-1 of 1 (failures, affecting 4 messages)