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AbuseIPDB » 51.4.97.143

51.4.97.143

Neutral Activity

71 reports found in our database

0% Low Risk

Abuse confidence score ?

ISP

Microsoft Deutschland MCIO GmbH

Usage Type

Data Center/Web Hosting/Transit

ASN

AS8075

Domain Name

microsoft.com

Country

🇮🇱 Israel

City

Tel Aviv, Tel Aviv

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report Whois

No reports in the last 60 days

51.4.97.143 has been reported 71 times. The most recent report is from 4 months ago.

The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.

IP Abuse Reports for 51.4.97.143:

This IP address has been reported a total of 71 times from 31 distinct sources. 51.4.97.143 was first reported on March 28th 2026, and the most recent report was 4 months ago.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇿 lp	2026-04-28 21:20:16 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-28T22:19:14+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-28T22:19:14+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-28T22:19:14+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇨🇿 lp	2026-04-28 06:20:56 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-28T07:37:12+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-28T07:37:12+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-28T07:37:12+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇫🇷 basing	2026-04-28 05:31:24 (4 months ago)	2026-04-28 06:31:24 pzb SASL PLAIN auth failed: rhost=51.4.97.143...	Brute-Force
🇮🇩 xveil	2026-04-28 03:03:23 (4 months ago)	2026-04-28T10:03:21.200247 mail-honeypot postfix/submission/smtpd[23750]: warning: unknown[51.4.97.1 ... show more 2026-04-28T10:03:21.200247 mail-honeypot postfix/submission/smtpd[23750]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force
🇮🇩 xveil	2026-04-27 21:39:15 (4 months ago)	2026-04-28T04:39:13.087239 mail-honeypot postfix/submission/smtpd[31146]: warning: unknown[51.4.97.1 ... show more 2026-04-28T04:39:13.087239 mail-honeypot postfix/submission/smtpd[31146]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force
🇨🇿 lp	2026-04-27 12:20:05 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-27T12:56:51+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-27T12:56:51+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-27T12:56:51+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇮🇩 xveil	2026-04-26 09:52:37 (4 months ago)	2026-04-26T16:52:34.662620 mail-honeypot postfix/submission/smtpd[30966]: warning: unknown[51.4.97.1 ... show more 2026-04-26T16:52:34.662620 mail-honeypot postfix/submission/smtpd[30966]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force
🇮🇩 xveil	2026-04-25 10:12:29 (4 months ago)	2026-04-25T17:12:26.681430 mail-honeypot postfix/submission/smtpd[15335]: warning: unknown[51.4.97.1 ... show more 2026-04-25T17:12:26.681430 mail-honeypot postfix/submission/smtpd[15335]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force
🇨🇿 lp	2026-04-25 07:50:36 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-25T08:37:50+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-25T08:37:50+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-25T08:37:50+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇨🇿 lp	2026-04-23 16:50:10 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-23T17:28:46+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-23T17:28:46+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-23T17:28:46+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇫🇷 GabrielJST	2026-04-21 15:43:25 (4 months ago)	(smtpauth) Failed SMTP AUTH login from 51.4.97.143 (IL/Israel/-)	Brute-Force
🇨🇿 lp	2026-04-20 16:14:27 (4 months ago)	Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-17T16:13:42+02:00 warni ... show more Email account brute force: 2 attempts were recorded from 51.4.97.143 2026-04-17T16:13:42+02:00 warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure, [email protected] 2026-04-17T16:13:42+02:00 warning: unknown[51.4.97.143]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
🇿🇦 maximonline.co.za	2026-04-20 10:30:04 (4 months ago)	Brute Force SMTP AUTH Attack	Brute-Force
🇮🇩 xveil	2026-04-20 05:30:08 (4 months ago)	2026-04-20T12:30:04.973459 mail-honeypot postfix/submission/smtpd[2463]: warning: unknown[51.4.97.14 ... show more 2026-04-20T12:30:04.973459 mail-honeypot postfix/submission/smtpd[2463]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force
🇮🇩 xveil	2026-04-20 02:57:57 (4 months ago)	2026-04-20T09:57:55.481460 mail-honeypot postfix/submission/smtpd[10377]: warning: unknown[51.4.97.1 ... show more 2026-04-20T09:57:55.481460 mail-honeypot postfix/submission/smtpd[10377]: warning: unknown[51.4.97.143]: SASL PLAIN authentication failed: authentication failure ... show less	Brute-Force

Showing 1 to 15 of 71 reports

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