Anonymous
2026-09-15 18:15:39
(4 hours ago)
2026-09-15T20:15:38.172285+02:00 gollum postfix/smtpd[1376409]: warning: unknown[78.81.105.154]: SAS ...
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2026-09-15T20:15:38.172285+02:00 gollum postfix/smtpd[1376409]: warning: unknown[78.81.105.154]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
2026-09-15T20:15:38.386571+02:00 gollum postfix/smtpd[1376409]: lost connection after AUTH from unknown[78.81.105.154]
2026-09-15T20:15:38.386676+02:00 gollum postfix/smtpd[1376409]: disconnect from unknown[78.81.105.154] ehlo=1 auth=0/1 commands=1/2
...
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DDoS Attack
Brute-Force
Anonymous
2026-09-15 16:37:58
(6 hours ago)
2026-09-15T19:37:58.348724+03:00 shell.l3.fi postfix/smtpd[1863564]: warning: unknown[78.81.105.154] ...
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2026-09-15T19:37:58.348724+03:00 shell.l3.fi postfix/smtpd[1863564]: warning: unknown[78.81.105.154]: SASL LOGIN authentication failed: UGFzc3dvcmQ6, sasl_username=roviomana26
2026-09-15T19:37:58.348960+03:00 shell.l3.fi postfix/smtpd[1863564]: disconnect from unknown[78.81.105.154] ehlo=1 auth=0/1 commands=1/2
...
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Email Spam
Brute-Force
🇮🇹
Inartis
2026-09-15 13:42:20
(9 hours ago)
2026-09-15T15:42:19.738129mail1.inartis.it postfix/smtpd[2487651]: warning: unknown[78.81.105.154]: ...
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2026-09-15T15:42:19.738129mail1.inartis.it postfix/smtpd[2487651]: warning: unknown[78.81.105.154]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Port Scan
Brute-Force
🇩🇪
FeG Deutschland
2026-09-15 08:08:14
(15 hours ago)
Mail: - login with unknown user - bruteforce
Brute-Force
🇭🇺
Lacika555
2026-09-15 05:44:59
(17 hours ago)
RdpGuard detected brute-force attempt on SMTP
Brute-Force
🇮🇹
Inartis
2026-09-15 02:06:23
(21 hours ago)
2026-09-15T04:06:22.919685mail1.inartis.it postfix/smtpd[2391692]: warning: unknown[78.81.105.154]: ...
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2026-09-15T04:06:22.919685mail1.inartis.it postfix/smtpd[2391692]: warning: unknown[78.81.105.154]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Port Scan
Brute-Force
🇬🇷
setupgr
2026-09-14 20:03:57
(1 day ago)
78.81.105.154 (RU/Russia/-/-/-/[AS12389 Rostelecom]), 2 distributed smtpauth attacks on account [gre ...
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78.81.105.154 (RU/Russia/-/-/-/[AS12389 Rostelecom]), 2 distributed smtpauth attacks on account [[email protected] ] in the last 86400 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: 2026-09-14 23:03:55 dovecot_login authenticator failed for H=(static-185-2-228-48.cust.tele2.lt) [95.174.100.64]:39402: 535 Incorrect authentication data ([email protected] )
2026-09-14 22:02:40 dovecot_login authenticator failed for H=([24.234.63.228]) [78.81.105.154]:49494: 535 Incorrect authentication data ([email protected] )
IP Addresses Blocked:
95.174.100.64 (RU/Russia/Rostov Oblast/Taganrog/-/[AS60246 Consumer Internet Cooperative PG-19])
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Port Scan
🇬🇷
setupgr
2026-09-14 19:02:43
(1 day ago)
(smtpauth) Failed SMTP AUTH login from 78.81.105.154 (RU/Russia/-/-/-/[AS12389 Rostelecom]): 1 in th ...
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(smtpauth) Failed SMTP AUTH login from 78.81.105.154 (RU/Russia/-/-/-/[AS12389 Rostelecom]): 1 in the last 86400 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-09-14 22:02:40 dovecot_login authenticator failed for H=([24.234.63.228]) [78.81.105.154]:49494: 535 Incorrect authentication data ([email protected] )
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Port Scan
🇮🇹
CoreTech srl
2026-09-14 14:37:33
(1 day ago)
"SMTP Login failed": count(IP)=28.0Smartermail 16:32:24.616 [59.102.36.8] SMTP Login failed: Usernam ...
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"SMTP Login failed": count(IP)=28.0Smartermail 16:32:24.616 [59.102.36.8] SMTP Login failed: Username or password is incorrect.Smartermail 16:32:24.616 [59.102.36.8] SMTP Login failed: Domain [midifendo.it] not foundSmartermail 16:32:28.293 [185.144.27.10] SMTP Login failed: Incorrect email address [clienti.amazon]Smartermail 16:32:28.293 [185.144.27.10] SMTP Login failed: Username or password is incorrect.Smartermail 16:32:28.300 [78.81.105.154] SMTP Login failed: Domain [serisap.it] not foundSmartermail 16:32:28.300 [78.81.105.154] SMTP Login failed: Username or password is incorrect.Smartermail 16:32:36.083 [37.204.107.25] SMTP Login failed: Username or password is incorrect.Smartermail 16:32:36.083 [37.204.107.25] SMTP Login failed: Incorrect email address [aleksei_bublin]is-63909a28 16:35:11.083 [197.145.248.67] SMTP Login failed: Incorrect password for user [[email protected] ]
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Brute-Force
🇨🇦
Julio Covolato
2026-09-14 13:20:01
(1 day ago)
Imap or Submission login brute-force attacks.
Brute-Force
Anonymous
2026-09-14 11:13:36
(1 day ago)
IMAP password guessing
Brute-Force
🇩🇪
FeG Deutschland
2026-09-14 01:26:19
(1 day ago)
Mail: - login with unknown user - bruteforce
Brute-Force
🇮🇹
VHosting
2026-09-14 01:05:04
(1 day ago)
Detected mail brute force attack from different servers
Brute-Force
Anonymous
2026-09-14 00:30:03
(1 day ago)
SMTP brute force - auth failed
Brute-Force
Exploited Host
🇮🇹
CoreTech srl
2026-09-13 20:27:35
(2 days ago)
"SMTP Login failed": count(IP)=37.0Smartermail 22:23:10.793 [178.124.201.9] SMTP Login failed: Domai ...
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"SMTP Login failed": count(IP)=37.0Smartermail 22:23:10.793 [178.124.201.9] SMTP Login failed: Domain [mmicromed.it] not foundSmartermail 22:23:10.793 [178.124.201.9] SMTP Login failed: Username or password is incorrect.Smartermail 22:23:16.931 [59.95.23.131] SMTP Login failed: Username or password is incorrect.Smartermail 22:23:16.931 [59.95.23.131] SMTP Login failed: Incorrect email address [miki53]Smartermail 22:23:33.027 [78.81.105.154] SMTP Login failed: Domain [cbm-srl.com] not foundSmartermail 22:23:33.027 [78.81.105.154] SMTP Login failed: Username or password is incorrect.Smartermail 22:23:36.930 [184.181.76.81] SMTP Login failed: Username or password is incorrect.Smartermail 22:23:36.930 [184.181.76.81] SMTP Login failed: Incorrect email address [quality]MX1-DC2 22:23:43.877 [70.183.226.28] SMTP Login failed: Domain [copagghedi.eu] not found
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Brute-Force