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AbuseIPDB » 51.12.219.12

51.12.219.12 was found in our database!

This IP was reported 15 times. Confidence of Abuse is 71%: ?

71%

ISP	Microsoft Limited
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Domain Name	microsoft.com
Country	🇸🇪 Sweden
City	Gavle, Gavleborg

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

Report 51.12.219.12

Whois 51.12.219.12

IP Abuse Reports for 51.12.219.12:

This IP address has been reported a total of 15 times from 12 distinct sources. 51.12.219.12 was first reported on June 21st 2026, and the most recent report was 2 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
🇧🇷 dominioz	2026-06-22 07:28:10 (2 hours ago)	51.12.219.12 [28E0] 04:28:08 Authentication [SMTP] - Result=0, [email protected], Me ... show more 51.12.219.12 [28E0] 04:28:08 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
Anonymous	2026-06-22 04:30:38 (5 hours ago)	Failed login attempt detected by Fail2Ban in plesk-postfix jail	Brute-Force
Anonymous	2026-06-22 02:37:02 (7 hours ago)	...	Brute-Force
🇧🇷 dominioz	2026-06-21 22:19:11 (11 hours ago)	51.12.219.12 [4BD8] 19:13:42 Authentication [SMTP] - Result=0, [email protected], Meth ... show more 51.12.219.12 [4BD8] 19:13:42 Authentication [SMTP] - Result=0, [email protected], Method=0 51.12.219.12 [4BD8] 19:19:07 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇺🇸 hostmach	2026-06-21 20:42:00 (12 hours ago)	(smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: * ... show more (smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-06-21 20:12:11 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:40280: 535 Incorrect authentication data ([email protected]) 2026-06-21 20:19:56 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:33222: 535 Incorrect authentication data ([email protected]) 2026-06-21 20:27:09 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:52456: 535 Incorrect authentication data ([email protected]) 2026-06-21 20:34:25 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:56974: 535 Incorrect authentication data ([email protected]) 2026-06-21 20:41:56 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:46342: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 Ghost Rider	2026-06-21 20:37:58 (13 hours ago)	RdpGuard detected brute-force attempt on SMTP	Brute-Force
Anonymous	2026-06-21 20:27:31 (13 hours ago)	(smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-/-/-/[redacted])	Brute-Force
🇺🇸 bigscoots.com	2026-06-21 20:24:12 (13 hours ago)	(smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: 2 ... show more (smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-21 16:20:40 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:55892: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:23:05 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:56140: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:23:51 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:52744: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:24:00 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:52754: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:24:08 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:53296: 535 Incorrect authentication data show less	Brute-Force SSH
🇧🇷 SvrAdmin	2026-06-21 20:23:23 (13 hours ago)	[315] (smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Po ... show more [315] (smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Jun 21 17:08:22 cwp01 postfix/smtpd[2224]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 17:09:54 cwp01 postfix/smtpd[2097]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 17:16:04 cwp01 postfix/smtpd[2097]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 17:17:50 cwp01 postfix/smtpd[2880]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 17:23:20 cwp01 postfix/smtpd[2097]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇺🇸 vandomatos	2026-06-21 20:18:13 (13 hours ago)	Jun 21 11:40:06 servidor postfix/smtps/smtpd[712895]: warning: unknown[51.12.219.12]: SASL LOGIN aut ... show more Jun 21 11:40:06 servidor postfix/smtps/smtpd[712895]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 13:10:07 servidor postfix/smtps/smtpd[721527]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 21 13:18:03 servidor postfix/smtps/smtpd[722160]: warning: unknown[51.12.219.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 ... show less	Phishing Web Spam Email Spam Hacking Spoofing Brute-Force Bad Web Bot
🇧🇷 LM Security	2026-06-21 20:15:03 (13 hours ago)	2026-06-21 17:12:34 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:46204: 535 Incor ... show more 2026-06-21 17:12:34 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:46204: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:52:29 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:56930: 535 Incorrect authentication data ([email protected]) show less	Brute-Force
🇧🇷 dominioz	2026-06-21 20:11:47 (13 hours ago)	51.12.219.12 [28E0] 15:29:34 Authentication [SMTP] - Result=0, [email protected], Meth ... show more 51.12.219.12 [28E0] 15:29:34 Authentication [SMTP] - Result=0, [email protected], Method=0 51.12.219.12 [3E7C] 17:03:50 Authentication [SMTP] - Result=0, [email protected], Method=0 51.12.219.12 [4BD8] 17:11:42 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇺🇸 bigscoots.com	2026-06-21 20:08:55 (13 hours ago)	(smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: 2 ... show more (smtpauth) Failed SMTP AUTH login from 51.12.219.12 (SE/Sweden/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-06-21 15:26:31 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:55516: 535 Incorrect authentication data ([email protected]) 2026-06-21 15:53:47 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:36686: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:05:48 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:39368: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:07:57 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:58842: 535 Incorrect authentication data ([email protected]) 2026-06-21 16:08:50 dovecot_login authenticator failed for H=(ADMIN) [51.12.219.12]:33752: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇧🇷 hostseries	2026-06-21 18:00:53 (15 hours ago)	Trigger: LF_SMTPAUTH	Brute-Force
Anonymous	2026-06-21 17:02:08 (16 hours ago)	BruteForce IMAP/POP3/SMTP	Brute-Force

Showing 1 to 15 of 15 reports

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