πΊπΈ
IndigoRidge
2026-09-16 02:31:38
(2 hours ago)
Sep 15 22:24:47 cmg8 postfix/smtpd[141318]: warning: unknown[172.204.144.52]: SASL LOGIN authenticat ...
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Sep 15 22:24:47 cmg8 postfix/smtpd[141318]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:27:00 cmg8 postfix/smtpd[141964]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:28:10 cmg8 postfix/smtpd[141964]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:30:27 cmg8 postfix/smtpd[143152]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:31:36 cmg8 postfix/smtpd[143152]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Brute-Force
πΊπΈ
IndigoRidge
2026-09-16 02:07:43
(2 hours ago)
Sep 15 22:00:57 cmg8 postfix/smtpd[133086]: warning: unknown[172.204.144.52]: SASL LOGIN authenticat ...
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Sep 15 22:00:57 cmg8 postfix/smtpd[133086]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:03:20 cmg8 postfix/smtpd[134023]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:04:24 cmg8 postfix/smtpd[134023]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:06:36 cmg8 postfix/smtpd[134925]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 22:07:43 cmg8 postfix/smtpd[134925]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Brute-Force
Anonymous
2026-09-16 01:48:48
(3 hours ago)
(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/-)
Brute-Force
πΊπΈ
IndigoRidge
2026-09-16 01:44:13
(3 hours ago)
Sep 15 21:36:24 cmg8 postfix/smtpd[125349]: warning: unknown[172.204.144.52]: SASL LOGIN authenticat ...
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Sep 15 21:36:24 cmg8 postfix/smtpd[125349]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 21:39:22 cmg8 postfix/smtpd[126454]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 21:40:38 cmg8 postfix/smtpd[126454]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 21:42:58 cmg8 postfix/smtpd[127450]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
Sep 15 21:44:12 cmg8 postfix/smtpd[127450]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Brute-Force
πͺπΈ
Nudisco
2026-09-15 02:51:05
(1 day ago)
Brute-Force
π§π·
govfacil.app
2026-09-15 02:50:29
(1 day ago)
(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/-): 5 in the last 3600 secs; P ...
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(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-09-14 23:20:46 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:35246: 535 Incorrect authentication data ([email protected] )
2026-09-14 23:40:19 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:54990: 535 Incorrect authentication data ([email protected] )
2026-09-14 23:43:45 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:59342: 535 Incorrect authentication data ([email protected] )
2026-09-14 23:47:06 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:45946: 535 Incorrect authentication data ([email protected] )
2026-09-14 23:50:25 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:57940: 535 Incorrect authentication data ([email protected] )
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Brute-Force
Anonymous
2026-09-15 02:46:40
(1 day ago)
Authentication failure
Brute-Force
π§π·
LM Security
2026-09-15 02:45:03
(1 day ago)
2026-09-14 23:42:25 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:37870: 535 Inc ...
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2026-09-14 23:42:25 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:37870: 535 Incorrect authentication data (set_id=odivan@[redacted]holding.com.br)
2026-09-14 23:38:31 dovecot_login authenticator failed for H=(ADMIN) [172.204.144.52]:35130: 535 Incorrect authentication data (set_id=odivan@[redacted]holding.com.br)
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Brute-Force
π«π·
[email protected]
2026-09-13 23:52:37
(2 days ago)
Sep 14 01:49:42 mail6 postfix/smtps/smtpd[786583]: warning: unknown[172.204.144.52]: SASL LOGIN auth ...
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Sep 14 01:49:42 mail6 postfix/smtps/smtpd[786583]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 14 01:51:35 mail6 postfix/smtps/smtpd[745991]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 14 01:51:35 mail6 postfix/smtps/smtpd[745991]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 14 01:52:36 mail6 postfix/smtps/smtpd[745991]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
...
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Brute-Force
Anonymous
2026-09-13 19:15:38
(2 days ago)
(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/Auckland/Auckland/-/[redacted] ...
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(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/Auckland/Auckland/-/[redacted])
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Brute-Force
π΅πΉ
WebTejo
2026-09-13 19:14:16
(2 days ago)
Detected multiple authentication failures and invalid user attempts in LF_SMTPAUTH from IP address 1 ...
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Detected multiple authentication failures and invalid user attempts in LF_SMTPAUTH from IP address 172.204.144.52 on [PT] Tucano Node.
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Brute-Force
SSH
πͺπΈ
elcruzado.es
2026-09-13 18:59:39
(2 days ago)
(smtpauth) Failed SMTP AUTH login from 172.204.144.52 (NZ/New Zealand/-)
Brute-Force
πΊπΈ
vandomatos
2026-09-13 18:56:49
(2 days ago)
Sep 13 11:02:54 servidor postfix/smtps/smtpd[2720408]: warning: unknown[172.204.144.52]: SASL LOGIN ...
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Sep 13 11:02:54 servidor postfix/smtps/smtpd[2720408]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 13 11:49:02 servidor postfix/smtps/smtpd[2724216]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 13 11:56:47 servidor postfix/smtps/smtpd[2724566]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
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Phishing
Web Spam
Email Spam
Hacking
Spoofing
Brute-Force
Bad Web Bot
π«π·
[email protected]
2026-09-13 18:48:19
(2 days ago)
Sep 13 20:40:40 mail6 postfix/smtps/smtpd[589138]: warning: unknown[172.204.144.52]: SASL LOGIN auth ...
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Sep 13 20:40:40 mail6 postfix/smtps/smtpd[589138]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 13 20:43:19 mail6 postfix/smtps/smtpd[601645]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 13 20:45:05 mail6 postfix/smtps/smtpd[602442]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 13 20:47:09 mail6 postfix/smtps/smtpd[592895]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Sep 13 20:48:18 mail6 postfix/smtps/smtpd[601766]: warning: unknown[172.204.144.52]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
...
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Brute-Force
π©πͺ
marcelhalls
2026-09-13 03:00:08
(3 days ago)
Repeated attacks detected by Fail2Ban in recidive jail
Hacking