Network: ESA

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

Network Information

WHOIS Owner:: EE
Countries:: EE

Unique IPs:: 2

CIDR:: 91.199.154.0/24

Analysis

This network has contributed 2 unique IP addresses across 2 failed authentication events, accounting for 5 messages. Activity spans from November 4, 2024 to July 20, 2026, with peak volume in November 2024 (1 event). The top countries by failure volume are Estonia (100%). The most active source IPs from this network include 91.199.154.105 (1 failure), 91.199.154.92 (1 failure). Failures from ESA are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network

Showing 1-2 of 2 failures, affecting 5 messages

Show Confoundersⓘ

Date ▼	Source IP	Country	Messages
7/20/2026	91.199.154.105	EE	1
11/4/2024	91.199.154.92	EE	4

Countries

Estonia