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AbuseIPDB » 172.204.136.10

172.204.136.10 was found in our database!

This IP was reported 22 times. Confidence of Abuse is 76%: ?

76%

ISP	Microsoft Limited
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Domain Name	microsoft.com
Country	🇳🇿 New Zealand
City	Auckland, Auckland

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

Report 172.204.136.10

Whois 172.204.136.10

IP Abuse Reports for 172.204.136.10:

This IP address has been reported a total of 22 times from 15 distinct sources. 172.204.136.10 was first reported on June 14th 2026, and the most recent report was 16 hours ago.

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇧🇷 Caue Henrique	2026-06-19 14:31:00 (16 hours ago)		Web Spam Web App Attack
🇺🇸 bigscoots.com	2026-06-15 22:26:55 (4 days ago)	(PERMBLOCK) 172.204.136.10 (NZ/New Zealand/-) has had more than 4 temp blocks in the last 86400 secs ... show more (PERMBLOCK) 172.204.136.10 (NZ/New Zealand/-) has had more than 4 temp blocks in the last 86400 secs; Ports: *; Direction: 1; Trigger: LF_PERMBLOCK_COUNT; Logs: show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-15 22:05:40 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 17:48:31 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:37126: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:52:48 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:57686: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:57:09 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:46860: 535 Incorrect authentication data ([email protected]) 2026-06-15 18:01:26 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:38418: 535 Incorrect authentication data ([email protected]) 2026-06-15 18:05:38 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:36686: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-15 21:44:23 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 17:27:32 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:45630: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:31:39 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:35998: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:35:50 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:54064: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:40:03 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:46228: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:44:19 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:39784: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-15 21:23:28 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 17:06:42 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:39846: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:10:48 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:49050: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:15:01 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:51048: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:19:11 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:37030: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:23:25 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:45990: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
Anonymous	2026-06-15 21:18:43 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-)	Brute-Force
🇺🇸 hostmach	2026-06-15 21:16:31 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 20:53:24 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:60462: 535 Incorrect authentication data ([email protected]) 2026-06-15 20:59:08 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:45464: 535 Incorrect authentication data ([email protected]) 2026-06-15 21:05:03 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:33680: 535 Incorrect authentication data ([email protected]) 2026-06-15 21:10:37 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:42708: 535 Incorrect authentication data ([email protected]) 2026-06-15 21:16:26 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:53286: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇧🇷 SvrAdmin	2026-06-15 21:03:22 (4 days ago)	[315] (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 s ... show more [315] (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Jun 15 17:51:55 cwp01 postfix/smtpd[2096]: warning: unknown[172.204.136.10]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 15 17:53:54 cwp01 postfix/smtpd[2096]: warning: unknown[172.204.136.10]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 15 17:57:38 cwp01 postfix/smtpd[7851]: warning: unknown[172.204.136.10]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 15 17:58:52 cwp01 postfix/smtpd[7851]: warning: unknown[172.204.136.10]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 15 18:03:18 cwp01 postfix/smtpd[8741]: warning: unknown[172.204.136.10]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇺🇸 bigscoots.com	2026-06-15 21:02:28 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 16:42:45 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:57660: 535 Incorrect authentication data ([email protected]) 2026-06-15 16:49:28 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:42894: 535 Incorrect authentication data ([email protected]) 2026-06-15 16:53:59 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:60384: 535 Incorrect authentication data ([email protected]) 2026-06-15 16:58:13 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:32826: 535 Incorrect authentication data ([email protected]) 2026-06-15 17:02:25 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.10]:56656: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
Anonymous	2026-06-15 21:02:17 (4 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/Auckland/Auckland/-/[redacted] ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.10 (NZ/New Zealand/Auckland/Auckland/-/[redacted]) show less	Brute-Force
Anonymous	2026-06-15 20:54:50 (4 days ago)	Authentication failure	Brute-Force
🇧🇷 dominioz	2026-06-15 08:57:18 (4 days ago)	172.204.136.10 [0B28] 05:57:16 Authentication [SMTP] - Result=0, [email protected], Me ... show more 172.204.136.10 [0B28] 05:57:16 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
Anonymous	2026-06-15 04:30:53 (5 days ago)	Failed login attempt detected by Fail2Ban in plesk-postfix jail	Brute-Force
🇩🇪 marcelhalls	2026-06-15 03:00:03 (5 days ago)	Repeated attacks detected by Fail2Ban in recidive jail	Hacking
🇧🇷 dominioz	2026-06-15 00:55:47 (5 days ago)	172.204.136.10 [0B28] 21:04:40 Authentication [SMTP] - Result=0, [email protected], Me ... show more 172.204.136.10 [0B28] 21:04:40 Authentication [SMTP] - Result=0, [email protected], Method=0 172.204.136.10 [0B28] 21:55:43 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force

Showing 1 to 15 of 22 reports

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