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

Network: MSFT

This page shows DMARC authentication failures originating from the MSFT network. Learn more about this data.

Network Information
Owner:
Microsoft
Org ID:
MSFT
Address:
One Microsoft Way, Redmond, WA 98052
Countries:
AU AT CA FR DE HK IN IE JP NO SG KR SE CH NL AE GB US
Unique IPs:
3,378
CIDRs:
104.40.0.0/13, 20.0.0.0/11, (more)

Analysis

This network has contributed 3,378 unique IP addresses across 10,572 failed authentication events, accounting for 13,398 messages. Activity spans from March 12, 2024 to June 24, 2026, with peak volume in September 2024 (1,998 events). The top countries by failure volume are United States (88%), Ireland (3%), The Netherlands (3%). The most active source IPs from this network include 104.47.57.168 (75 failures), 104.47.58.168 (68 failures), 104.47.56.169 (64 failures). Failures from MSFT (Microsoft) span 18 countries with no dominant source, which is consistent with forwarding infrastructure, relay services, or broadly distributed automated activity.

Failures Detected from this Network
Showing 6,851-6,900 of 10,572 failures, affecting 13,398 messages
Date โ–ผ Source IP Country Messages
11/21/2024 104.47.70.43 โš  US 1
11/21/2024 104.47.70.45 โš  US 2
11/21/2024 104.47.70.46 โš  US 1
11/21/2024 104.47.70.47 โš  US 2
11/21/2024 104.47.70.49 โš  US 1
11/21/2024 104.47.73.171 โš  US 2
11/21/2024 104.47.73.172 โš  US 1
11/21/2024 104.47.73.41 โš  US 2
11/21/2024 104.47.74.49 โš  US 1
11/21/2024 23.103.208.82 โš  US 1
11/21/2024 23.103.209.80 โš  US 1
11/21/2024 40.107.100.139 โš  US 1
11/21/2024 40.107.200.105 โš  US 1
11/21/2024 40.107.200.69 โš  US 1
11/21/2024 40.107.201.43 โš  US 1
11/21/2024 40.107.212.108 โš  US 1
11/21/2024 40.107.223.109 โš  US 1
11/21/2024 40.107.223.128 โš  US 1
11/21/2024 40.107.237.113 โš  US 1
11/21/2024 40.107.243.118 โš  US 1
11/21/2024 40.107.243.138 โš  US 1
11/21/2024 40.107.92.113 โš  US 1
11/21/2024 40.107.93.127 โš  US 1
11/21/2024 40.107.94.139 โš  US 1
11/21/2024 40.107.96.113 โš  US 1
11/21/2024 40.93.10.3 โš  US 1
11/21/2024 40.93.12.20 โš  US 1
11/21/2024 40.93.12.22 โš  US 1
11/21/2024 40.93.1.38 โš  US 1
11/21/2024 40.93.1.77 โš  US 1
11/21/2024 40.93.198.78 โš  US 1
11/21/2024 40.93.200.85 โš  US 1
11/21/2024 40.93.20.52 โš  US 1
11/21/2024 40.93.20.54 โš  US 1
11/21/2024 40.93.6.2 โš  US 1
11/21/2024 52.100.167.249 โš  US 1
11/21/2024 52.101.193.107 โš  US 1
11/21/2024 52.101.57.0 โš  US 1
11/21/2024 52.101.62.108 โš  US 1
11/21/2024 52.101.85.141 โš  US 1
11/21/2024 52.101.85.7 โš  US 1
11/20/2024 104.47.11.106 โš  IE 1
11/20/2024 104.47.11.111 โš  IE 1
11/20/2024 104.47.11.112 โš  IE 2
11/20/2024 104.47.11.232 โš  NL 1
11/20/2024 104.47.11.236 โš  NL 1
11/20/2024 104.47.11.48 โš  AT 1
11/20/2024 104.47.17.108 โš  IE 1
11/20/2024 104.47.17.109 โš  IE 1
11/20/2024 104.47.17.110 โš  IE 1