104.28.221.213

Recent Activity This IP has received recent abuse reports, which causes the score to increase.
Abuse Confidence Score
77% Critical
36 reports
25 reporters · latest 1 day ago
ISP
Cloudflare, Inc.
Usage Type
Data Center/Web Hosting/Transit
ASN
AS13335
Domain Name
cloudflare.com
Country
🇭🇹 Haiti
City
Port-au-Prince, Ouest
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Abuse Reports

Total reports
36 from 25 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇳🇱 Netherlands 9 🇩🇪 Germany 5 🇨🇿 Czechia 4
Most common categories Brute-Force 23 Hacking 9 Email Spam 4 Port Scan 3 DDoS Attack 1
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
Brute-Force
🇮🇹 CoreTech srl
Brute-Force
🇳🇱 maxxsense
(postfix-unknown) Failed postfix unknown login with username [redacted] from 104.28.221.213 (HT/Haiti/-)
Hacking
🇹🇷 Jova
Repeated failed SMTP logins to a mail account (credential guessing).
Brute-Force
🇳🇱 maxxsense
(postfix-unknown) Failed postfix unknown login with username [redacted] from 104.28.221.213 (HT/Haiti/-)
Hacking
🇨🇿 lp
Email account brute force: 1 attempts were recorded from 104.28.221.213 2026-11-07T15:24:33+0100 warning: unknown[104.28.221.213]: SASL authentication failed
Brute-Force
🇳🇱 Mangelot Hosting
(exim_invalid_user) srv102 Exim auth on non-existent account 104.28.221.213 (PF/French Polynesia/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs:
Web App Attack
🇮🇹 CoreTech srl
Brute-Force
🇩🇪 juutis
Nov 6 21:12:23 butler postfix/smtpd[2339704]: warning: unknown[104.28.221.213]: SASL PLAIN authentication failed: authentication failure, [email protected]
Brute-Force
🇳🇱 maxxsense
(postfix-unknown) Failed postfix unknown login with username [redacted] from 104.28.221.213 (HT/Haiti/-)
Hacking
🇷🇺 OK
SMTP
Email Spam Hacking Brute-Force
Anonymous
This IP was detected by CrowdSec triggering local/postfix-sasl-no-ptr-ban
Email Spam Brute-Force
🇳🇱 peter.pann
Observed by a SmarterMail server: helo-signature,auth-failure,reputation (450 matching log lines). Non-HTTP protocols only.
Brute-Force
🇨🇿 lp
Email account brute force: 1 attempts were recorded from 104.28.221.213 2026-10-29T18:29:33+0100 warning: unknown[104.28.221.213]: SASL authentication failed
Brute-Force
🇺🇸 Smee
IMAP/SMTP Authentication Failure
Brute-Force

Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown

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