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

Network: BLUECLOUD

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)

Network Information
WHOIS Owner:
Microsoft (China) Co, Ltd.
Countries:
CN
Unique IPs:
19
CIDR:
139.219.0.0/16
Failures Detected from this Network
Showing 1-19 of 19 (failures, affecting 19 messages)
Date â–¼ Source IP Country Messages
12/19/2025 139.219.146.21 CN 1
12/5/2025 139.219.17.18 CN 1
12/18/2024 139.219.146.120 CN 1
12/5/2024 139.219.146.130 CN 1
11/21/2024 139.219.17.115 CN 1
11/12/2024 139.219.146.104 CN 1
11/12/2024 139.219.146.133 CN 1
10/23/2024 139.219.146.137 CN 1
10/23/2024 139.219.146.92 CN 1
9/27/2024 139.219.146.109 CN 1
9/27/2024 139.219.146.125 CN 1
9/27/2024 139.219.17.134 CN 1
9/18/2024 139.219.146.110 CN 1
9/18/2024 139.219.146.123 CN 1
9/18/2024 139.219.146.126 CN 1
9/18/2024 139.219.146.93 CN 1
9/13/2024 139.219.146.129 CN 1
9/13/2024 139.219.146.138 CN 1
9/13/2024 139.219.146.96 CN 1