Source IP activity targeting the POP3 service triggered a security scan ban due to an invalid POP3 c ...
show moreSource IP activity targeting the POP3 service triggered a security scan ban due to an invalid POP3 command. Two subsequent IP-block events followed against the POP3 service, indicating attempted access or probing. Observed at 2026-03-02T05:18:42Z.
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Initial security scan-ban for invalid SMTP command; followed by four IP-blocked events targeting the ...
show moreInitial security scan-ban for invalid SMTP command; followed by four IP-blocked events targeting the SMTP submission service within ~7 minutes, indicating repeated connection attempts from this source.
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Observed activity from 185.93.89.60 targeting mail service ports. One scan-ban due to an invalid com ...
show moreObserved activity from 185.93.89.60 targeting mail service ports. One scan-ban due to an invalid command, and multiple subsequent IP blocks on local ports 25 and 587 across several attempts, indicating probing for exposed mail services. First event: 2026-02-28T15:14:06Z; blocks continued through 2026-02-28T19:31:16Z.
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Suspicious SMTP-related activity detected from the IP. Initial event: invalid SMTP command triggerin ...
show moreSuspicious SMTP-related activity detected from the IP. Initial event: invalid SMTP command triggering a security scan ban. Subsequent blocks affected SMTP and submission services on local ports 25, 587, and 465, indicating probing or abuse attempts.
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Two events from IP 161.132.4.37: a security scan ban due to invalid SMTP command, followed by an IP ...
show moreTwo events from IP 161.132.4.37: a security scan ban due to invalid SMTP command, followed by an IP block on SMTP access.
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Source IP 124.71.222.211 triggered multiple security actions targeting the SMTP submission service o ...
show moreSource IP 124.71.222.211 triggered multiple security actions targeting the SMTP submission service on local port 587. Initial scan-ban for an invalid SMTP command, followed by several blocks for this IP on the same service. Indicates probing or attempted abuse of SMTP.
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Repeated connection attempts from this IP targeting mail services, resulting in blocks. Initial even ...
show moreRepeated connection attempts from this IP targeting mail services, resulting in blocks. Initial event shows invalid SMTP command. Over ~5 hours (03:27Z to 08:24Z) there were about 30 block events across mail-facing endpoints, suggesting automated scanning/brute-force activity. No successful logins captured in this dataset.
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Multiple security events from the IP: 60.204.199.133 include a scan-ban for an invalid SMTP command ...
show moreMultiple security events from the IP: 60.204.199.133 include a scan-ban for an invalid SMTP command and repeated blocks on local ports 25 and 587 across several observations (01:59:55Z to 06:36:03Z). Indicates scanning activity and credential-related attempts against exposed services.
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Invalid POP3 command detected from IP 46.101.248.99 against POP3 service on port 110; triggered a se ...
show moreInvalid POP3 command detected from IP 46.101.248.99 against POP3 service on port 110; triggered a security scan-ban and subsequent IP blocks.
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From 172.94.9.66: an invalid SMTP command triggered a security scan-ban. The IP was blocked on commo ...
show moreFrom 172.94.9.66: an invalid SMTP command triggered a security scan-ban. The IP was blocked on common mail ports 25 and 587 due to repeated access attempts, indicating credential brute-force attempts against SMTP/web services.
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From the reported IP, a security scan ban was triggered for an invalid SMTP command on local port 25 ...
show moreFrom the reported IP, a security scan ban was triggered for an invalid SMTP command on local port 25. Subsequently, the IP was blocked from the submission service on local port 587, with three blocks observed in quick succession (timestamps around 22:26:15Z).
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Originating IP 116.124.133.219. First event: security scan-ban for invalid SMTP command at 2026-02-2 ...
show moreOriginating IP 116.124.133.219. First event: security scan-ban for invalid SMTP command at 2026-02-27T22:02:38Z. Subsequent ip-blocked events occurred on mail-related ports (25 and 587) at 2026-02-27T23:03:56Z, indicating repeated attempts to access mail services. No successful connections observed in provided logs.
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Security scan ban: invalid SMTP command detected from the IP during interaction with the SMTP servic ...
show moreSecurity scan ban: invalid SMTP command detected from the IP during interaction with the SMTP service; flagged as a scan attempt and blocked.
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Invalid SMTP command triggered a security ban; two additional IP-block events were recorded for repe ...
show moreInvalid SMTP command triggered a security ban; two additional IP-block events were recorded for repeated attempts to access the mail service.
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Multiple access attempts detected from the IP targeting a mail-service port (local port 110). An inv ...
show moreMultiple access attempts detected from the IP targeting a mail-service port (local port 110). An invalid command triggered a security ban, followed by three subsequent blocks for the same IP on the same port within seconds (times 17:04:21–17:04:23Z).
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Invalid POP3 command observed targeting POP3S service (port 995); security ban applied for the sourc ...
show moreInvalid POP3 command observed targeting POP3S service (port 995); security ban applied for the source IP.
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IP 206.168.34.117 triggered suspicious activity targeting the SMTP submission service. An invalid SM ...
show moreIP 206.168.34.117 triggered suspicious activity targeting the SMTP submission service. An invalid SMTP command caused a security scan ban, followed by two IP-blocked events for the same IP. First event observed at 2026-02-24T05:16:12Z, with blocks noted at 2026-02-24T05:16:13Z.
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Observed invalid POP3 command leading to a scan-ban, with two subsequent IP-blocked events on local ...
show moreObserved invalid POP3 command leading to a scan-ban, with two subsequent IP-blocked events on local port 110 for the same source IP. All events at 2026-02-23T22:15:38Z.
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From the IP, three security events were observed: one scan-ban due to invalid SMTP command and two s ...
show moreFrom the IP, three security events were observed: one scan-ban due to invalid SMTP command and two subsequent IP blocks targeting the SMTP service. Indicates probing of SMTP service and potential brute-force attempts.
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Observed two security events: a security scan ban due to invalid SMTP command, and an IP block on th ...
show moreObserved two security events: a security scan ban due to invalid SMTP command, and an IP block on the submission path.
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Blocked attempt from 80.82.77.202 targeting a service on port 143; likely credential brute-force/log ...
show moreBlocked attempt from 80.82.77.202 targeting a service on port 143; likely credential brute-force/login attempt to a mail service; connection blocked by security system.
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Brute-Force
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