ArchivedNo longer active, data collection ran March 2024 to September 2026|9,442 records|3,409 source IPs|138 countriesAbout this archive
Shame on you, stupid spammers..Sh4meful  DMARC Spoof Detection
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Network: PROOFPOINT-NET-NORTH-AMERICA ⚠ Confounder

This page shows DMARC authentication failures originating from the PROOFPOINT-NET-NORTH-AMERICA network. Learn more about this data.

Network Information
Owner:
Proofpoint
Org ID:
PROOF
Address:
925 W Maude Ave, Sunnyvale, CA 94085
Countries:
US
Unique IPs:
83
CIDRs:
148.163.128.0/19, 208.84.64.0/22, (more)

Analysis

This network has contributed 83 unique IP addresses across 299 failed authentication events, accounting for 501 messages. Activity spans from March 12, 2024 to June 24, 2026, with peak volume in July 2025 (67 events). The top countries by failure volume are United States (100%). The most active source IPs from this network include 148.163.133.153 (20 failures), 148.163.137.153 (18 failures), 67.231.149.128 (15 failures). Failures from PROOFPOINT-NET-NORTH-AMERICA (Proofpoint) are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-50 of 299 failures, affecting 501 messages
Date ▼ Source IP Country Messages
6/24/2026 148.163.137.153 ⚠US1
6/24/2026 67.231.154.183 ⚠US1
6/23/2026 67.231.144.34 ⚠US1
6/16/2026 148.163.133.153 ⚠US1
6/2/2026 148.163.133.153 ⚠US1
5/21/2026 67.231.157.15 ⚠US1
4/7/2026 148.163.133.153 ⚠US1
3/24/2026 148.163.133.153 ⚠US1
3/10/2026 148.163.137.153 ⚠US1
2/24/2026 148.163.137.153 ⚠US1
1/30/2026 67.231.154.183 ⚠US1
1/28/2026 148.163.133.153 ⚠US1
1/14/2026 148.163.137.153 ⚠US1
1/14/2026 67.231.154.184 ⚠US1
1/8/2026 148.163.129.48 ⚠US1
1/7/2026 148.163.133.153 ⚠US1
12/16/2025 148.163.133.153 ⚠US1
12/10/2025 148.163.137.153 ⚠US1
12/3/2025 148.163.137.153 ⚠US1
12/2/2025 148.163.137.153 ⚠US1
11/20/2025 148.163.137.153 ⚠US1
11/19/2025 148.163.137.153 ⚠US1
11/11/2025 148.163.133.153 ⚠US1
10/21/2025 148.163.133.153 ⚠US1
10/10/2025 67.231.154.183 ⚠US1
10/8/2025 148.163.133.153 ⚠US1
10/7/2025 148.163.137.153 ⚠US1
10/3/2025 67.231.154.184 ⚠US1
10/2/2025 148.163.129.48 ⚠US1
10/1/2025 148.163.133.153 ⚠US1
10/1/2025 208.84.65.209 ⚠US1
9/30/2025 148.163.133.153 ⚠US1
9/26/2025 148.163.129.49 ⚠US1
9/26/2025 148.163.129.52 ⚠US2
9/26/2025 208.86.201.149 ⚠US2
9/24/2025 208.84.65.209 ⚠US1
9/24/2025 208.86.201.149 ⚠US1
9/24/2025 67.231.154.183 ⚠US1
9/24/2025 67.231.154.184 ⚠US1
9/23/2025 148.163.137.153 ⚠US1
9/19/2025 148.163.129.48 ⚠US1
9/19/2025 208.84.65.209 ⚠US1
9/18/2025 148.163.129.52 ⚠US1
9/17/2025 148.163.137.153 ⚠US1
9/17/2025 208.84.65.209 ⚠US1
9/12/2025 208.84.65.209 ⚠US1
9/12/2025 67.231.154.183 ⚠US2
9/12/2025 67.231.154.184 ⚠US2
9/11/2025 148.163.129.49 ⚠US1
9/11/2025 148.163.149.104 ⚠US1
9/11/2025 148.163.153.103 ⚠US1
9/10/2025 148.163.133.153 ⚠US1
9/10/2025 208.84.65.209 ⚠US1
9/10/2025 67.231.154.184 ⚠US1
9/9/2025 148.163.137.153 ⚠US1
9/5/2025 208.86.201.149 ⚠US1
9/5/2025 67.231.154.184 ⚠US1
9/4/2025 67.231.154.184 ⚠US1
9/3/2025 208.86.201.149 ⚠US1
8/6/2025 148.163.129.52 ⚠US1
8/6/2025 67.231.154.164 ⚠US1
8/1/2025 208.86.201.149 ⚠US1
7/31/2025 148.163.133.153 ⚠US1
7/31/2025 67.231.154.184 ⚠US1
7/23/2025 148.163.133.148 ⚠US1
7/23/2025 148.163.137.148 ⚠US1
7/23/2025 148.163.146.49 ⚠US1
7/23/2025 148.163.150.39 ⚠US5
7/23/2025 148.163.154.228 ⚠US1
7/23/2025 208.86.201.149 ⚠US1
7/23/2025 67.231.154.164 ⚠US1
7/18/2025 148.163.133.153 ⚠US1
7/17/2025 148.163.137.148 ⚠US2
7/17/2025 148.163.146.49 ⚠US1
7/17/2025 148.163.150.39 ⚠US3
7/17/2025 148.163.153.251 ⚠US2
7/17/2025 148.163.154.228 ⚠US1
7/17/2025 208.84.65.209 ⚠US1
7/17/2025 67.231.154.183 ⚠US1
7/11/2025 148.163.133.148 ⚠US1
7/11/2025 148.163.137.148 ⚠US1
7/11/2025 148.163.149.104 ⚠US1
7/11/2025 148.163.153.103 ⚠US1
7/11/2025 148.163.153.251 ⚠US5
7/11/2025 148.163.154.228 ⚠US1
7/11/2025 208.84.65.209 ⚠US1
7/10/2025 148.163.133.153 ⚠US1
7/9/2025 148.163.129.48 ⚠US1
7/9/2025 148.163.129.49 ⚠US2
7/9/2025 148.163.133.153 ⚠US2
7/9/2025 148.163.135.248 ⚠US2
7/9/2025 148.163.137.153 ⚠US2
7/9/2025 148.163.139.248 ⚠US1
7/9/2025 67.231.149.128 ⚠US1
7/9/2025 67.231.149.52 ⚠US1
7/9/2025 67.231.154.183 ⚠US1
7/9/2025 67.231.154.184 ⚠US1
7/9/2025 67.231.157.124 ⚠US4
7/9/2025 67.231.157.48 ⚠US2
7/8/2025 148.163.150.77 ⚠US1
7/8/2025 148.163.154.29 ⚠US3
7/3/2025 148.163.129.48 ⚠US2
7/3/2025 148.163.129.52 ⚠US1
7/3/2025 148.163.140.99 ⚠US1
7/3/2025 148.163.144.99 ⚠US1
7/3/2025 148.163.146.83 ⚠US1
7/3/2025 148.163.154.171 ⚠US1
7/3/2025 148.163.158.168 ⚠US2
7/3/2025 67.231.148.111 ⚠US3
7/3/2025 67.231.149.128 ⚠US3
7/3/2025 67.231.153.32 ⚠US2
7/3/2025 67.231.154.183 ⚠US2
7/3/2025 67.231.154.184 ⚠US1
7/3/2025 67.231.157.124 ⚠US2
7/2/2025 148.163.129.48 ⚠US1
7/2/2025 148.163.129.52 ⚠US1
7/2/2025 148.163.135.248 ⚠US2
7/2/2025 148.163.137.153 ⚠US1
7/2/2025 67.231.149.52 ⚠US1
7/2/2025 67.231.151.74 ⚠US1
7/2/2025 67.231.157.48 ⚠US2
7/2/2025 67.231.158.203 ⚠US3
7/1/2025 148.163.133.153 ⚠US2
7/1/2025 148.163.137.153 ⚠US1
7/1/2025 148.163.150.77 ⚠US1
7/1/2025 67.231.154.184 ⚠US2
6/30/2025 148.163.154.29 ⚠US4
6/28/2025 67.231.149.128 ⚠US1
6/27/2025 148.163.129.48 ⚠US1
6/27/2025 148.163.129.52 ⚠US1
6/27/2025 148.163.150.39 ⚠US1
6/27/2025 148.163.153.251 ⚠US3
6/27/2025 148.163.153.66 ⚠US2
6/27/2025 148.163.156.171 ⚠US1
6/27/2025 148.163.156.36 ⚠US2
6/27/2025 148.163.158.168 ⚠US1
6/27/2025 67.231.145.199 ⚠US2
6/27/2025 67.231.147.118 ⚠US1
6/27/2025 67.231.149.128 ⚠US3
6/27/2025 67.231.154.164 ⚠US1
6/27/2025 67.231.154.184 ⚠US2
6/26/2025 148.163.129.48 ⚠US1
6/26/2025 148.163.129.49 ⚠US1
6/26/2025 148.163.129.52 ⚠US1
6/26/2025 148.163.142.54 ⚠US2
6/26/2025 67.231.154.183 ⚠US1
6/26/2025 67.231.154.184 ⚠US1
6/25/2025 148.163.137.153 ⚠US1
6/25/2025 67.231.158.203 ⚠US4
6/24/2025 148.163.154.29 ⚠US1
6/19/2025 208.84.65.209 ⚠US1
6/12/2025 148.163.129.52 ⚠US1
6/11/2025 148.163.154.29 ⚠US1
6/11/2025 67.231.154.183 ⚠US1
6/4/2025 67.231.147.118 ⚠US1
5/2/2025 67.231.149.128 ⚠US1
5/2/2025 67.231.154.183 ⚠US1
5/2/2025 67.231.155.118 ⚠US1
5/1/2025 148.163.133.153 ⚠US1
4/30/2025 148.163.150.77 ⚠US1
4/25/2025 148.163.137.153 ⚠US1
4/24/2025 148.163.150.77 ⚠US1
4/16/2025 148.163.133.153 ⚠US1
4/15/2025 148.163.154.29 ⚠US1
3/19/2025 67.231.154.164 ⚠US1
3/19/2025 67.231.154.183 ⚠US1
3/12/2025 148.163.153.251 ⚠US1
3/12/2025 67.231.147.222 ⚠US1
2/28/2025 148.163.148.155 ⚠US1
2/28/2025 148.163.153.251 ⚠US1
2/28/2025 67.231.147.222 ⚠US1
2/28/2025 67.231.149.52 ⚠US1
2/26/2025 67.231.154.164 ⚠US1
2/26/2025 67.231.154.183 ⚠US1
2/25/2025 148.163.140.224 ⚠US1
2/14/2025 148.163.147.29 ⚠US1
2/14/2025 148.163.150.39 ⚠US2
2/14/2025 148.163.155.228 ⚠US1
2/14/2025 148.163.156.169 ⚠US2
1/17/2025 148.163.140.247 ⚠US3
1/17/2025 148.163.144.247 ⚠US4
1/16/2025 148.163.140.224 ⚠US1
1/7/2025 148.163.144.224 ⚠US1
12/19/2024 67.231.157.124 ⚠US1
12/18/2024 148.163.153.251 ⚠US2
12/18/2024 67.231.147.141 ⚠US1
12/17/2024 148.163.153.251 ⚠US1
12/17/2024 148.163.158.42 ⚠US1
12/11/2024 148.163.135.74 ⚠US1
12/11/2024 148.163.145.163 ⚠US1
12/10/2024 148.163.140.224 ⚠US1
12/10/2024 148.163.140.62 ⚠US2
12/10/2024 148.163.144.224 ⚠US1
12/10/2024 148.163.156.36 ⚠US1
12/10/2024 148.163.158.33 ⚠US1
12/10/2024 67.231.149.128 ⚠US2
12/10/2024 67.231.157.124 ⚠US1
12/5/2024 148.163.140.62 ⚠US2
12/5/2024 148.163.143.251 ⚠US1
12/5/2024 148.163.144.62 ⚠US1
12/5/2024 67.231.147.141 ⚠US1
12/5/2024 67.231.149.128 ⚠US3
12/5/2024 67.231.155.141 ⚠US3
12/5/2024 67.231.157.124 ⚠US1
12/4/2024 148.163.153.251 ⚠US4
12/4/2024 148.163.156.45 ⚠US2
12/4/2024 208.86.201.235 ⚠US1
12/4/2024 67.231.147.141 ⚠US3
12/4/2024 67.231.149.128 ⚠US2
12/4/2024 67.231.149.52 ⚠US1
12/4/2024 67.231.155.141 ⚠US2
12/4/2024 67.231.157.124 ⚠US2
11/21/2024 148.163.156.171 ⚠US1
11/21/2024 148.163.158.168 ⚠US1
11/21/2024 67.231.149.128 ⚠US1
11/20/2024 148.163.140.141 ⚠US3
11/20/2024 148.163.143.251 ⚠US3
11/20/2024 148.163.144.138 ⚠US1
11/20/2024 148.163.144.62 ⚠US1
11/20/2024 148.163.149.154 ⚠US3
11/20/2024 148.163.150.39 ⚠US1
11/20/2024 148.163.151.28 ⚠US1
11/20/2024 148.163.153.251 ⚠US1
11/20/2024 148.163.156.7 ⚠US1
11/20/2024 208.86.201.235 ⚠US2
11/20/2024 67.231.145.185 ⚠US1
11/20/2024 67.231.145.199 ⚠US2
11/20/2024 67.231.149.128 ⚠US7
11/20/2024 67.231.149.52 ⚠US2
11/20/2024 67.231.157.124 ⚠US6
11/20/2024 67.231.157.48 ⚠US3
11/19/2024 67.231.144.142 ⚠US1
11/12/2024 148.163.140.62 ⚠US2
11/12/2024 148.163.144.62 ⚠US1
11/12/2024 67.231.149.128 ⚠US7
11/12/2024 67.231.149.52 ⚠US1
11/12/2024 67.231.157.124 ⚠US7
11/12/2024 67.231.157.48 ⚠US1
11/10/2024 148.163.149.210 ⚠US1
11/8/2024 148.163.153.251 ⚠US1
11/8/2024 148.163.154.228 ⚠US1
11/8/2024 148.163.156.7 ⚠US1
11/8/2024 208.86.201.235 ⚠US1
11/8/2024 67.231.147.141 ⚠US1
10/23/2024 148.163.138.61 ⚠US2
10/23/2024 148.163.151.28 ⚠US1
10/23/2024 148.163.153.251 ⚠US1
10/23/2024 148.163.156.45 ⚠US1
10/23/2024 148.163.156.7 ⚠US1
10/23/2024 208.86.201.235 ⚠US3
Countries