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Anonymous
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Failed login attempt detected by Fail2Ban in plesk-postfix jail
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Brute-Force
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🇮🇹
CoreTech srl
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Smartermail 03:12:53.480 [109.162.201.44] SMTP Login failed: Username or password is incorrect.Smartermail 03:12:53.480 [109.162.201.44] SMTP Login failed: Domain [erongest.it] not foundSmartermail 03:13:05.560 [149.54.62.6] SMTP Login failed: Userna ...
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Smartermail 03:12:53.480 [109.162.201.44] SMTP Login failed: Username or password is incorrect.Smartermail 03:12:53.480 [109.162.201.44] SMTP Login failed: Domain [erongest.it] not foundSmartermail 03:13:05.560 [149.54.62.6] SMTP Login failed: Username or password is incorrect.Smartermail 03:13:05.560 [149.54.62.6] SMTP Login failed: Domain [cbm-srl.com] not foundSmartermail 03:13:15.038 [24.234.101.146] SMTP Login failed: Incorrect email address [vendite]Smartermail 03:13:15.038 [24.234.101.146] SMTP Login failed: Username or password is incorrect.is-65b7aeb8 03:13:16.721 [185.149.189.102] SMTP Login failed: User [siges.plesk] not foundis-65b7aeb8 03:13:16.721 [185.149.189.102] SMTP Login failed: Username or password is incorrect.Smartermail 03:13:22.505 [71.86.57.25] SMTP Login failed: Domain [laseronline.it] not foundSmartermail 03:13:22.505 [71.86.57.25] SMTP Login failed: Username or password is incorrect.
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Brute-Force
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🇺🇸
jfz-abuse
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fail2ban: postfix-sasl
...
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Brute-Force
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Anonymous
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2026-09-15T03:49:29.050701+03:00 shell.l3.fi postfix/smtps/smtpd[1580700]: warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6, sasl_username=stone12
2026-09-15T03:49:29.052036+03:00 shell.l3.fi postfix/smtps/smtpd[158070 ...
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2026-09-15T03:49:29.050701+03:00 shell.l3.fi postfix/smtps/smtpd[1580700]: warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6, sasl_username=stone12
2026-09-15T03:49:29.052036+03:00 shell.l3.fi postfix/smtps/smtpd[1580700]: disconnect from unknown[109.162.201.44] ehlo=1 auth=0/1 commands=1/2
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Email Spam
Brute-Force
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🇮🇹
www.tana.it
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SMTP auth dictionary attack
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Brute-Force
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Anonymous
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...
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Brute-Force
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🇨🇿
lp
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Email account brute force: 6 attempts were recorded from 109.162.201.44
2026-09-15T00:42:49+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T00:43:55+02:00 ...
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Email account brute force: 6 attempts were recorded from 109.162.201.44
2026-09-15T00:42:49+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T00:43:55+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T00:49:34+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T01:21:14+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T01:24:00+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-09-15T01:35:22+02:00 warning: unknown[109.162.201.44]: SASL LOGIN authenti
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Brute-Force
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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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🇹🇷
ferique
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Real-time Intercept: SMTP attack. Reference: 2026-09-15 03:05:33.3398 Login failure: 109.162.201.44 SMTP
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Brute-Force
Email Spam
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Anonymous
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Authentication failure
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Brute-Force
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🇺🇸
[email protected]
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Total attacks: 1
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Brute-Force
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🇮🇹
CoreTech srl
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"SMTP Login failed": count(IP)=20.0Smartermail 01:12:46.119 [78.107.250.85] SMTP Login failed: Username or password is incorrect.Smartermail 01:12:46.119 [78.107.250.85] SMTP Login failed: Domain [consus.it] not foundSmartermail 01:12:52.620 [175.197 ...
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"SMTP Login failed": count(IP)=20.0Smartermail 01:12:46.119 [78.107.250.85] SMTP Login failed: Username or password is incorrect.Smartermail 01:12:46.119 [78.107.250.85] SMTP Login failed: Domain [consus.it] not foundSmartermail 01:12:52.620 [175.197.250.108] SMTP Login failed: Username or password is incorrect.Smartermail 01:12:52.620 [175.197.250.108] SMTP Login failed: Incorrect email address [office]Smartermail 01:13:07.572 [109.162.201.44] SMTP Login failed: Domain [sarnioro.it] not foundSmartermail 01:13:07.572 [109.162.201.44] SMTP Login failed: Username or password is incorrect.Smartermail 01:15:22.409 [70.184.72.161] SMTP Login failed: Username or password is incorrect.Smartermail 01:15:22.409 [70.184.72.161] SMTP Login failed: Domain [loftrappresentanze.it] not foundSmartermail 01:15:33.339 [70.183.193.103] SMTP Login failed: Incorrect email address [frainny]
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Brute-Force
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🇺🇸
Rip
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SASL authentication brute-force attack.
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Brute-Force
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🇵🇾
SecOpsSL
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Sep 14 19:45:48 mail postfix/smtps/smtpd[9221]: warning: unknown[109.162.201.44]: SASL LOGIN authentication failed: authentication failure
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Email Spam
Brute-Force
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🇮🇹
VHosting
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Detected mail brute force attack from different servers
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Brute-Force
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