AbuseIPDB » 91.231.121.39

91.231.121.39 was found in our database!

This IP was reported 201 times. Confidence of Abuse is 79%: ?

79%
ISP GTnet sp.j. Tomasz Gajewski Grzegorz Mazurek
Usage Type Fixed Line ISP
ASN AS198072
Domain Name gtnet.com.pl
Country ๐Ÿ‡ต๐Ÿ‡ฑ Poland
City Zamosc, Lublin

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

IP Abuse Reports for 91.231.121.39:

This IP address has been reported a total of 201 times from 87 distinct sources. 91.231.121.39 was first reported on , and the most recent report was .

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter IoA Timestamp (UTC) Comment Categories
Anonymous
Port Scan Brute-Force
๐Ÿ‡ฌ๐Ÿ‡ง D3monite
Attempted Brute Force (dovecot)
Brute-Force
๐Ÿ‡ท๐Ÿ‡ด gtheo99
(imapd) Failed IMAP login from 91.231.121.39 (PL/Poland/-): 3 in the last 900 secs
Brute-Force Email Spam
๐Ÿ‡ฉ๐Ÿ‡ช FeG Deutschland
Mail: - login with unknown user - bruteforce
Brute-Force
๐Ÿ‡ซ๐Ÿ‡ท basing
2026-06-20 06:11:49 pzb SASL PLAIN auth failed: rhost=91.231.121.39...
Brute-Force
๐Ÿ‡ซ๐Ÿ‡ท smtp.com.es
Brute force attempt.
Brute-Force Email Spam
Anonymous
This IP was detected by CrowdSec triggering crowdsecurity/dovecot-spam
Email Spam Brute-Force
๐Ÿ‡บ๐Ÿ‡ธ chrisj
Brute-Force
๐Ÿ‡ฉ๐Ÿ‡ช menelaos foskolos
Brute-Force Email Spam
๐Ÿ‡ฉ๐Ÿ‡ช FeG Deutschland
Mail: - login with unknown user - bruteforce
Brute-Force
๐Ÿ‡ฆ๐Ÿ‡บ FireGuard Server
Blocked by OPNsense firewall; 3 hits, proto=tcp, ports=143
Port Scan Hacking
๐Ÿ‡ท๐Ÿ‡บ DZBOT
DZBOT: [MTA] Brute-force users
Brute-Force
๐Ÿ‡ฆ๐Ÿ‡บ AWW-Admin
(imapd) Failed IMAP login from 91.231.121.39 (PL/Poland/-)
Brute-Force
๐Ÿ‡ฉ๐Ÿ‡ช FeG Deutschland
Mail: - login with unknown user - bruteforce
Brute-Force
๐Ÿ‡ฆ๐Ÿ‡บ FireGuard Server
Blocked by OPNsense firewall; 3 hits, proto=tcp, ports=143
Port Scan Hacking

Showing 1 to 15 of 201 reports


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