๐ฉ๐ช
R.G.
2026-06-26 18:17:51
(23 hours ago)
(RCPT) RCPT NOT ALLOWED FROM 14.20.131.210 (CN/China/-): 5 in the last 600 secs; Ports: *; Directio ...
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(RCPT) RCPT NOT ALLOWED FROM 14.20.131.210 (CN/China/-): 5 in the last 600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs:
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Web App Attack
๐ฉ๐ช
vcis.de
2026-06-26 18:12:03
(23 hours ago)
SMTP brute force attack detected from [14.20.131.210]
Brute-Force
๐ณ๐ฑ
Markus Ackerl
2026-06-26 18:11:11
(23 hours ago)
Jun 26 18:10:21 mx postfix/smtpd[638542]: warning: unknown[14.20.131.210]: SASL LOGIN authentication ...
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Jun 26 18:10:21 mx postfix/smtpd[638542]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 18:11:03 mx postfix/smtpd[638542]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 18:11:10 mx postfix/smtpd[638542]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
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Brute-Force
๐ซ๐ท
[email protected]
2026-06-26 17:38:50
(23 hours ago)
Jun 26 19:38:11 mail6 postfix/smtpd[3418653]: warning: unknown[14.20.131.210]: SASL LOGIN authentica ...
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Jun 26 19:38:11 mail6 postfix/smtpd[3418653]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=anonymous
Jun 26 19:38:17 mail6 postfix/smtpd[3418653]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=anonymous
Jun 26 19:38:26 mail6 postfix/smtpd[3424768]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=anonymous
Jun 26 19:38:28 mail6 postfix/smtpd[3418653]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=anonymous
Jun 26 19:38:50 mail6 postfix/smtpd[3424768]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=anonymous
...
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Brute-Force
๐ณ๐ฑ
Godert Jan van Manen
2026-06-26 16:03:49
(1 day ago)
Jun 26 18:03:23 odin postfix/smtpd[27711]: warning: unknown[14.20.131.210]: SASL LOGIN authenticatio ...
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Jun 26 18:03:23 odin postfix/smtpd[27711]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 18:03:31 odin postfix/smtpd[27711]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 18:03:49 odin postfix/smtpd[27711]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: Invalid base64 data in continued response
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Brute-Force
๐ณ๐ฑ
Godert Jan van Manen
2026-06-26 15:42:52
(1 day ago)
Jun 26 17:42:35 odin postfix/smtpd[23576]: warning: unknown[14.20.131.210]: SASL LOGIN authenticatio ...
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Jun 26 17:42:35 odin postfix/smtpd[23576]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 17:42:42 odin postfix/smtpd[23576]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jun 26 17:42:52 odin postfix/smtpd[23576]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
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Brute-Force
๐ซ๐ท
haxwell.de
2026-06-26 11:26:26
(1 day ago)
2026-06-26T12:25:23.410893+01:00 vegeta postfix/smtpd[3926657]: NOQUEUE: reject: RCPT from unknown[1 ...
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2026-06-26T12:25:23.410893+01:00 vegeta postfix/smtpd[3926657]: NOQUEUE: reject: RCPT from unknown[14.20.131.210]: 450 4.7.25 Client host rejected: cannot find your hostname, [14.20.131.210]; from=<[email protected] > to=<[email protected] > proto=ESMTP helo=<huo>
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Brute-Force
๐ซ๐ท
allan71
2026-06-26 11:11:28
(1 day ago)
Jun 26 13:11:27 s03d9 postfix/smtpd[1428707]: disconnect from unknown[14.20.131.210] commands=0/0
.. ...
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Jun 26 13:11:27 s03d9 postfix/smtpd[1428707]: disconnect from unknown[14.20.131.210] commands=0/0
...
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Email Spam
Spoofing
๐ซ๐ท
basing
2026-06-26 11:05:47
(1 day ago)
2026-06-26 12:05:47 pzb SASL PLAIN auth failed: rhost=14.20.131.210...
Brute-Force
๐ซ๐ท
David Buzinkai
2026-06-26 10:59:17
(1 day ago)
Jun 26 10:59:16 server0 postfix/smtpd[1323514]: NOQUEUE: reject: RCPT from unknown[14.20.131.210]: 4 ...
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Jun 26 10:59:16 server0 postfix/smtpd[1323514]: NOQUEUE: reject: RCPT from unknown[14.20.131.210]: 450 4.7.25 Client host rejected: cannot find your hostname, [14.20.131.210]; from=<[email protected] > to=<[email protected] > proto=ESMTP helo=<huo>
Jun 26 10:59:16 server0 postfix/smtpd[1323514]: NOQUEUE: reject: RCPT from unknown[14.20.131.210]: 450 4.7.25 Client host rejected: cannot find your hostname, [14.20.131.210]; from=<[email protected] > to=<[email protected] > proto=ESMTP helo=<huo>
Jun 26 10:59:17 server0 postfix/smtpd[1323514]: NOQUEUE: reject: RCPT from unknown[14.20.131.210]: 450 4.7.25 Client host rejected: cannot find your hostname, [14.20.131.210]; from=<[email protected] > to=<[email protected] > proto=ESMTP helo=<huo>
...
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Brute-Force
๐ซ๐ท
maxxsense
2026-06-26 10:06:48
(1 day ago)
(smtpauth) Failed SMTP AUTH login from 14.20.131.210 (CN/China/-)
Brute-Force
๐บ๐ธ
WeekendWeb
2026-06-26 08:19:07
(1 day ago)
exim WAF violations
Web App Attack
Anonymous
2026-06-26 04:53:33
(1 day ago)
SMTP Bruteforce attempt
Brute-Force
๐ซ๐ท
dwmp
2026-06-25 21:07:08
(1 day ago)
2026-06-25T23:06:12.550409+02:00 galileo.dwmp.it postfix/smtpd[432416]: warning: unknown[14.20.131.2 ...
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2026-06-25T23:06:12.550409+02:00 galileo.dwmp.it postfix/smtpd[432416]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: authentication failure, sasl_username=anonymous
2026-06-25T23:06:16.028902+02:00 galileo.dwmp.it postfix/smtpd[432416]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: authentication failure, sasl_username=anonymous
2026-06-25T23:06:19.183090+02:00 galileo.dwmp.it postfix/smtpd[432416]: warning: unknown[14.20.131.210]: SASL LOGIN authentication failed: authentication failure, sasl_username=anonymous
...
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Brute-Force
๐ซ๐ท
Kimax
2026-06-25 19:55:53
(1 day ago)
RdpGuard detected brute-force attempt on SMTP
Brute-Force