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AbuseIPDB » 172.204.136.30

172.204.136.30 was found in our database!

This IP was reported 11 times. Confidence of Abuse is 42%: ?

42%

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 172.204.136.30

Whois 172.204.136.30

IP Abuse Reports for 172.204.136.30:

This IP address has been reported a total of 11 times from 6 distinct sources. 172.204.136.30 was first reported on June 18th 2026, and the most recent report was 2 days 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
Anonymous	2026-06-18 16:30:47 (2 days ago)	Failed login attempt detected by Fail2Ban in plesk-postfix jail	Brute-Force
🇧🇷 dominioz	2026-06-18 09:59:07 (2 days ago)	172.204.136.30 [0C28] 06:53:59 Authentication [SMTP] - Result=0, [email protected] ... show more 172.204.136.30 [0C28] 06:53:59 Authentication [SMTP] - Result=0, [email protected], Method=0 172.204.136.30 [3530] 06:59:04 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇧🇷 dominioz	2026-06-18 07:51:55 (2 days ago)	172.204.136.30 [0C28] 04:36:45 Authentication [SMTP] - Result=0, [email protected] ... show more 172.204.136.30 [0C28] 04:36:45 Authentication [SMTP] - Result=0, [email protected], Method=0 172.204.136.30 [3530] 04:41:49 Authentication [SMTP] - Result=0, [email protected], Method=0 172.204.136.30 [0C28] 04:51:53 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇺🇸 bigscoots.com	2026-06-18 06:42:56 (2 days ago)	(PERMBLOCK) 172.204.136.30 (NZ/New Zealand/-) has had more than 4 temp blocks in the last 86400 secs ... show more (PERMBLOCK) 172.204.136.30 (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	2026-06-18 06:15:53 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-18 01:54:13 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:33290: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:59:37 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:48208: 535 Incorrect authentication data ([email protected]) 2026-06-18 02:05:00 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:57412: 535 Incorrect authentication data ([email protected]) 2026-06-18 02:10:24 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:54348: 535 Incorrect authentication data ([email protected]) 2026-06-18 02:15:49 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:59290: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-18 05:48:55 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-18 01:27:11 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:36794: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:32:34 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:56182: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:37:57 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:50754: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:43:23 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:49524: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:48:52 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:33810: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-18 05:21:48 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-18 01:00:14 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:34788: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:05:37 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:59746: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:11:01 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:59404: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:16:24 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:37310: 535 Incorrect authentication data ([email protected]) 2026-06-18 01:21:47 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:36336: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-06-18 04:54:55 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; P ... show more (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-18 00:32:15 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:57054: 535 Incorrect authentication data ([email protected]) 2026-06-18 00:38:42 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:48100: 535 Incorrect authentication data ([email protected]) 2026-06-18 00:44:07 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:34414: 535 Incorrect authentication data ([email protected]) 2026-06-18 00:49:30 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:41650: 535 Incorrect authentication data ([email protected]) 2026-06-18 00:54:52 dovecot_login authenticator failed for H=(ADMIN) [172.204.136.30]:43204: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇧🇷 SvrAdmin	2026-06-18 04:54:12 (2 days ago)	[315] (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 s ... show more [315] (smtpauth) Failed SMTP AUTH login from 172.204.136.30 (NZ/New Zealand/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Jun 18 01:27:36 cwp01 postfix/smtpd[14237]: warning: unknown[172.204.136.30]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 18 01:37:03 cwp01 postfix/smtpd[15172]: warning: unknown[172.204.136.30]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 18 01:42:49 cwp01 postfix/smtpd[15655]: warning: unknown[172.204.136.30]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 18 01:48:32 cwp01 postfix/smtpd[15933]: warning: unknown[172.204.136.30]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 18 01:54:10 cwp01 postfix/smtpd[16524]: warning: unknown[172.204.136.30]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇧🇷 hostseries	2026-06-18 04:37:27 (2 days ago)	Trigger: LF_SMTPAUTH	Brute-Force
Anonymous	2026-06-18 02:19:06 (2 days ago)	BruteForce IMAP/POP3/SMTP	Brute-Force

Showing 1 to 11 of 11 reports

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