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2a01:111:f403:dc05::3

Recent Activity IPv6 SLAAC Note

Abuse confidence score ?

26% Elevated

84 reports

15 reporters · latest 6 hours ago

ISP	Microsoft Limited
Usage Type	Content Delivery Network
ASN	AS8075
Hostname(s)	mail-japaneastazhn150130003.outbound.protection.outlook.com
Domain Name	microsoft.com
Country	🇯🇵 Japan
City	Tokyo, Tokyo

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IP Abuse Reports for 2a01:111:f403:dc05::3

This IP address has been reported a total of 84 times from 15 distinct sources. 2a01:111:f403:dc05::3 was first reported on August 21st 2025, and the most recent report was 6 hours ago. In the last 60 days, the top reporter locations were: Finland with 13 reports; Germany with 2 reports; Japan with 1 report. The most common categories in these recent reports were: Brute-Force 13 times; Port Scan 2 times; Email Spam 2 times; Phishing 1 time; Spoofing 1 time; Other 2 times.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇫🇮 hieronymousch	2026-07-10 18:34:30 (2 months ago)	Jul 10 20:34:23 franssen postfix/smtpd[3211808]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jul 10 20:34:23 franssen postfix/smtpd[3211808]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jul 10 20:34:25 franssen postfix/smtpd[3211805]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jul 10 20:34:25 franssen postfix/smtpd[3211808]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇯🇵 aniy	2026-06-11 05:06:24 (3 months ago)	<report_metadata> <org_name>Enterprise Outlook</org_name> <email>[email protected]</email> < ... show more <report_metadata> <org_name>Enterprise Outlook</org_name> <email>[email protected]</email> <report_id>ee1b3047e67644689e214aa2aaca4b15</report_id> <date_range> <begin>1780963200</begin> <end>1781049600</end> </date_range> </report_metadata> <record> <row> <source_ip>2a01:111:f403:dc05::3</source_ip> <count>1</count> <policy_evaluated> <disposition>reject</disposition> <dkim>fail</dkim> <spf>fail</spf> </policy_evaluated> </row> show less	Email Spam Spoofing
🇫🇮 hieronymousch	2026-06-10 18:23:42 (3 months ago)	Jun 10 20:23:30 franssen postfix/smtpd[5828]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003 ... show more Jun 10 20:23:30 franssen postfix/smtpd[5828]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 20:23:30 franssen postfix/smtpd[5828]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 20:23:30 franssen postfix/smtpd[5826]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-10 15:12:40 (3 months ago)	Jun 10 17:12:37 franssen postfix/smtpd[4174405]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 10 17:12:37 franssen postfix/smtpd[4174405]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 17:12:37 franssen postfix/smtpd[4174399]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 17:12:38 franssen postfix/smtpd[4174399]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-10 14:51:41 (3 months ago)	Jun 10 16:51:28 franssen postfix/smtpd[4171319]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 10 16:51:28 franssen postfix/smtpd[4171319]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 16:51:30 franssen postfix/smtpd[4171384]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 10 16:51:31 franssen postfix/smtpd[4171391]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇩🇪 ksol-hostmaster	2026-06-09 13:13:03 (3 months ago)	Jun 9 13:44:25 ksol postfix/after-postscreen/smtpd[34680]: NOQUEUE: reject: RCPT from mail-japaneas ... show more Jun 9 13:44:25 ksol postfix/after-postscreen/smtpd[34680]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]:11952: 550 5.1.7 <anonymized@email>: Sender address rejected: undeliverable address: host dig19237336.mail.protection.outlook.com[2a01:111:f403:cc1a::8] said: 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [TY2PEPF0000AB88.apcprd03.prod.outlook.com 2026-06-09T11:44:25.203Z 08DEC3F80747985E] (in reply to RCPT TO command); from=<anonymized@email> to=<anonymized@email> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 9 15:13:03 ksol postfix/after-postscreen/smtpd[74425]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]:12466: 550 5.1.7 <anonymized@email>: Sender address rejected: undeliverable address: host dig ... show less	Email Spam
🇫🇮 hieronymousch	2026-06-03 14:51:13 (3 months ago)	Jun 3 16:51:11 franssen postfix/smtpd[2750066]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 3 16:51:11 franssen postfix/smtpd[2750066]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 3 16:51:11 franssen postfix/smtpd[2750066]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 3 16:51:11 franssen postfix/smtpd[2750071]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-02 14:40:49 (3 months ago)	Jun 2 16:40:47 franssen postfix/smtpd[2679960]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 2 16:40:47 franssen postfix/smtpd[2679960]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 16:40:48 franssen postfix/smtpd[2679955]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 16:40:48 franssen postfix/smtpd[2679964]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-02 11:40:36 (3 months ago)	Jun 2 13:40:09 franssen postfix/smtpd[2673660]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 2 13:40:09 franssen postfix/smtpd[2673660]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 13:40:28 franssen postfix/smtpd[2673660]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 13:40:29 franssen postfix/smtpd[2673039]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-02 11:14:25 (3 months ago)	Jun 2 13:14:02 franssen postfix/smtpd[2672130]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 2 13:14:02 franssen postfix/smtpd[2672130]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 13:14:13 franssen postfix/smtpd[2672126]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 13:14:18 franssen postfix/smtpd[2672169]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇫🇮 hieronymousch	2026-06-02 10:59:25 (3 months ago)	Jun 2 12:59:13 franssen postfix/smtpd[2672080]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130 ... show more Jun 2 12:59:13 franssen postfix/smtpd[2672080]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 12:59:15 franssen postfix/smtpd[2672126]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<> to=<[email protected]> proto=ESMTP helo=<TYDPR03CU002.outbound.protection.outlook.com> Jun 2 12:59:18 franssen postfix/smtpd[2672126]: NOQUEUE: reject: RCPT from mail-japaneastazhn150130003.outbound.protection.outlook.com[2a01:111:f403:dc05::3]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in ... show less	Brute-Force
🇩🇪 filstal.org	2026-05-25 05:31:55 (4 months ago)	CrowdSec-Report: crowdsecurity/postfix-spam	Email Spam Brute-Force
🇩🇪 CK_beats	2026-05-24 05:30:01 (4 months ago)	Blocked by os-abuseipdb on OPNsense firewall KN-FW01; 5 hits, proto=tcp, ports=25	Port Scan Hacking
🇩🇪 filstal.org	2026-05-23 06:33:01 (4 months ago)	CrowdSec-Report: crowdsecurity/postfix-spam	Email Spam Brute-Force
🇩🇪 filstal.org	2026-05-21 05:08:16 (4 months ago)	CrowdSec-Report: crowdsecurity/postfix-spam	Email Spam Brute-Force

Showing 31 to 45 of 84 reports

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