🇫🇷
UM3
2026-04-21 15:20:02
(2 months ago)
Exim Auth Failed
Brute-Force
🇵🇱
IT RDC
2026-04-21 14:56:14
(2 months ago)
Apr 21 16:56:12 rdcmail postfix/submission/smtpd[850298]: warning: unknown[66.56.80.159]: SASL PLAIN ...
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Apr 21 16:56:12 rdcmail postfix/submission/smtpd[850298]: warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication failure, [email protected]
Apr 21 16:56:12 rdcmail postfix/submission/smtpd[850298]: warning: unknown[66.56.80.159]: SASL LOGIN authentication failed: authentication failure, [email protected]
Apr 21 16:56:13 rdcmail postfix/smtps/smtpd[852108]: warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication failure, [email protected]
...
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Brute-Force
🇺🇸
bigscoots.com
2026-04-21 14:46:50
(2 months ago)
(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-21 10:46:23 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:12353: 535 Incorrect authentication data ([email protected] )
2026-04-21 10:46:29 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:12353: 535 Incorrect authentication data ([email protected] )
2026-04-21 10:46:37 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:25040: 535 Incorrect authentication data ([email protected] )
2026-04-21 10:46:45 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:59616: 535 Incorrect authentication data ([email protected] )
2026-04-21 10:46:47 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:25040: 535 Incorrect authentication data ([email protected] )
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Brute-Force
SSH
2026-04-21 13:04:23
(2 months ago)
(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-)
Brute-Force
🇩🇪
CR Honey Pot
2026-04-21 12:54:33
(2 months ago)
BruteForce IMAP
Brute-Force
🇳🇱
Sonar
2026-04-21 12:06:57
(2 months ago)
Bad_host
Brute-Force
🇦🇺
jalim
2026-04-21 11:14:28
(2 months ago)
Fail2Ban (11cc81a08e1b): 3 attempts from 66.56.80.159 triggered postfix-sasl jail. Ban time: 3600s. ...
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Fail2Ban (11cc81a08e1b): 3 attempts from 66.56.80.159 triggered postfix-sasl jail. Ban time: 3600s. Attack patterns detected in mail server logs.
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Brute-Force
🇩🇪
wlt-blocker
2026-04-21 11:09:19
(2 months ago)
Attempts to login to mail server with wrong username and/or password
Brute-Force
🇺🇸
bigscoots.com
2026-04-21 10:59:30
(2 months ago)
(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-21 06:59:17 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:29026: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:59:17 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:22111: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:59:23 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:29026: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:59:23 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:22111: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:59:29 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:1324: 535 Incorrect authentication data ([email protected] )
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Brute-Force
SSH
🇭🇺
Lacika555
2026-04-21 10:58:04
(2 months ago)
RdpGuard detected brute-force attempt on SMTP
Brute-Force
🇺🇸
bigscoots.com
2026-04-21 10:27:36
(2 months ago)
(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-21 06:26:57 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:47111: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:27:03 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:47111: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:27:09 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:14581: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:27:15 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:14581: 535 Incorrect authentication data ([email protected] )
2026-04-21 06:27:34 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:10043: 535 Incorrect authentication data ([email protected] )
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Brute-Force
SSH
2026-04-21 09:25:32
(2 months ago)
Authentication failure
Brute-Force
🇨🇿
lp
2026-04-21 09:19:57
(2 months ago)
Email account brute force: 8 attempts were recorded from 66.56.80.159
2026-04-21T11:04:55+02:00 warn ...
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Email account brute force: 8 attempts were recorded from 66.56.80.159
2026-04-21T11:04:55+02:00 warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-21T11:04:55+02:00 warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-21T11:04:55+02:00 warning: unknown[66.56.80.159]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-21T11:04:55+02:00 warning: unknown[66.56.80.159]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-21T11:04:56+02:00 warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-21T11:04:56+02:00 warning: unknown[66.56.80.159]: SASL PLAIN authentication failed: authentication fai
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Brute-Force
🇧🇷
SvrAdmin
2026-04-21 07:53:07
(2 months ago)
[101] (smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-21 04:52:41 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:29438: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:52:47 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:29438: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:52:54 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:4540: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:52:56 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:4540: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:53:05 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:40721: 535 Incorrect authentication data ([email protected] )
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Port Scan
Hacking
Brute-Force
Exploited Host
🇧🇷
SvrAdmin
2026-04-21 07:21:37
(2 months ago)
[199] (smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Po ...
show more
[199] (smtpauth) Failed SMTP AUTH login from 66.56.80.159 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-21 04:21:09 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:60564: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:21:15 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:60564: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:21:22 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:35458: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:21:24 dovecot_login authenticator failed for H=([10.30.18.78]) [66.56.80.159]:35458: 535 Incorrect authentication data ([email protected] )
2026-04-21 04:21:35 dovecot_plain authenticator failed for H=([10.30.18.78]) [66.56.80.159]:31266: 535 Incorrect authentication data ([email protected] )
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Port Scan
Hacking
Brute-Force
Exploited Host