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52.101.66.113

Recent Activity

Abuse confidence score ?

4% Caution

7 reports

6 reporters · latest 3 days ago

ISP	Microsoft Corporation
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Hostname(s)	mail-northeuropeazon11022113.outbound.protection.outlook.com
Domain Name	microsoft.com
Country	🇮🇪 Ireland
City	Dublin, Leinster

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IP Abuse Reports for 52.101.66.113

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This IP address has been reported a total of 7 times from 6 distinct sources. 52.101.66.113 was first reported on December 14th 2025, and the most recent report was 3 days ago. In the last 60 days, the only reporter location was: Switzerland with 1 report. The only category in these recent reports was: Email Spam 1 time.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇭 Origon	2026-10-23 05:39:52 (3 days ago)	NOQUEUE - IP: 52.101.66.113 - Oct 23 07:39:52 plesk postfix/smtpd[1444180]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 52.101.66.113 - Oct 23 07:39:52 plesk postfix/smtpd[1444180]: NOQUEUE: reject: RCPT from mail-northeuropeazon11022113.outbound.protection.outlook.com[52.101.66.113]: 450 4.1.8 <[email protected]>: Sender address rejected: Domain not found; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<DUZPR83CU001.outbound.protection.outlook.com> show less	Email Spam
🇹🇷 SeczarSecureOps	2026-07-24 12:32:14 (3 months ago)	Seczar SecureOps — FortiMail virus: 1 virus-laden message(s) — sender(s): [email protected] ... show more Seczar SecureOps — FortiMail virus: 1 virus-laden message(s) — sender(s): [email protected] show less	Phishing Email Spam
🇨🇦 rootnk	2026-05-26 21:26:00 (4 months ago)	Evidence at https://www.nk.ca/blog/index.php?/archives/18014-Business-Proposal-spam-from-Microsoft-O ... show more Evidence at https://www.nk.ca/blog/index.php?/archives/18014-Business-Proposal-spam-from-Microsoft-Outlook.html show less	Email Spam
🇯🇵 jay hung	2026-05-26 01:05:51 (5 months ago)	2026-05-26T01:05:50.026153+00:00 quarktech kernel: [213650.227212] [UFW BLOCK] IN=eth0 OUT= MAC=22:0 ... show more 2026-05-26T01:05:50.026153+00:00 quarktech kernel: [213650.227212] [UFW BLOCK] IN=eth0 OUT= MAC=22:00:92:2e:84:93:fe:ff:ff:ff:ff:ff:08:00 SRC=52.101.66.113 DST=172.237.20.248 LEN=40 TOS=0x00 PREC=0x40 TTL=217 ID=6529 DF PROTO=TCP SPT=60399 DPT=25 WINDOW=0 RES=0x00 ACK RST URGP=0 ... show less	Port Scan
🇨🇭 Origon	2026-04-08 10:56:33 (6 months ago)	NOQUEUE - IP: 52.101.66.113 - Apr 8 12:56:32 plesk postfix/smtpd[858444]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.101.66.113 - Apr 8 12:56:32 plesk postfix/smtpd[858444]: NOQUEUE: reject: RCPT from mail-northeuropeazon11022113.outbound.protection.outlook.com[52.101.66.113]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<DUZPR83CU001.outbound.protection.outlook.com> show less	Email Spam
🇺🇸 DiodeDave	2026-02-02 07:43:47 (8 months ago)	Attempted access after blacklisting	Email Spam
🇸🇪 triplecode	2025-12-14 18:41:55 (10 months ago)	Reported from hMailServer	Email Spam

Showing 1 to 7 of 7 reports

Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown 🚩

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