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🇦🇺
KevinNeale
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Fail2Ban recidive block for repeated malicious authentication attempts.
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Brute-Force
Web App Attack
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🇦🇺
KevinNeale
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Fail2Ban recidive block for repeated malicious authentication attempts.
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Web App Attack
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🇩🇪
MarkGGN
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SMTP Bruteforce. 2026-08-31T09:22:21.656610+02:00 *.* postfix/submission/smtpd[1936711]: warning: unknown[41.42.20.142]: SASL PLAIN authentication failed: authentication failure, sasl_username=falko.info@*
2026-08-31T09:22:21.723565+02:00 *.* postfix ...
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SMTP Bruteforce. 2026-08-31T09:22:21.656610+02:00 *.* postfix/submission/smtpd[1936711]: warning: unknown[41.42.20.142]: SASL PLAIN authentication failed: authentication failure, sasl_username=falko.info@*
2026-08-31T09:22:21.723565+02:00 *.* postfix/submission/smtpd[1936711]: disconnect from unknown[41.42.20.142] ehlo=2 starttls=1 auth=0/1 commands=3/4
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Brute-Force
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Anonymous
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BruteForce IMAP/POP3/SMTP
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Brute-Force
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Anonymous
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denied traffic to a non-approved destination port. destination port 587.
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Port Scan
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🇮🇹
Progetto1
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Mail - Multiple failed login attempts
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Brute-Force
Exploited Host
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🇺🇸
mnogoweb
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(smtpauth) Failed SMTP AUTH login from 41.42.20.142 (EG/Egypt/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-08-30 16:01:41 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentica ...
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(smtpauth) Failed SMTP AUTH login from 41.42.20.142 (EG/Egypt/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-08-30 16:01:41 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentication data ([email protected])
2026-08-30 16:02:37 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentication data ([email protected])
2026-08-30 16:04:56 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentication data ([email protected])
2026-08-30 16:12:35 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentication data ([email protected])
2026-08-30 16:18:40 plain authenticator failed for (localhost) [41.42.20.142]: 535 Incorrect authentication data ([email protected])
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Port Scan
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🇳🇱
maxxsense
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(postfix-unknown) Failed postfix unknown login with username [redacted] from 41.42.20.142 (EG/Egypt/-)
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Hacking
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🇺🇸
DiodeDave
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Attempted access after blacklisting
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Email Spam
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🇹🇭
thaizone.com
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Password guessing attack (SM11) #1
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Email Spam
Brute-Force
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🇮🇹
CoreTech srl
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"SMTP Login failed": count(IP)=30.0Smartermail 10:33:19.846 [138.84.199.138] SMTP Login failed: Invalid username ([email protected]) and password combination.Smartermail 10:33:19.846 [138.84.199.138] SMTP Login failed: Incorrect ...
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"SMTP Login failed": count(IP)=30.0Smartermail 10:33:19.846 [138.84.199.138] SMTP Login failed: Invalid username ([email protected]) and password combination.Smartermail 10:33:19.846 [138.84.199.138] SMTP Login failed: Incorrect password for user [[email protected]]is-674f2577 10:33:40.912 [103.43.76.121] SMTP Login failed: Incorrect password for user [[email protected]]is-674f2577 10:33:40.912 [103.43.76.121] SMTP Login failed: Invalid username ([email protected]) and password combination.Smartermail 10:33:57.113 [102.157.182.236] SMTP Login failed: Incorrect password for user [[email protected]]Smartermail 10:33:57.113 [102.157.182.236] SMTP Login failed: Invalid username ([email protected]) and password combination.is-6411d9d7 10:34:00.344 [41.42.20.142] SMTP Login failed: Domain [midifendo.it] not foundis-6411d9d7 10:34:00.344 [41.42.20.142] SMTP Login failed: That domain was not found. Double check your email address.Smartermai
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Brute-Force
Open Proxy
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🇭🇺
Lacika555
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RdpGuard detected brute-force attempt on SMTP
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Brute-Force
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