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52.103.33.83

Recent Activity

Abuse confidence score ?

19% Caution

25 reports

14 reporters · latest 2 days ago

ISP	Microsoft Corporation
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Hostname(s)	mail-westeuropeazolkn19013083.outbound.protection.outlook.com
Domain Name	microsoft.com
Country	🇳🇱 Netherlands
City	Amsterdam, North Holland

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IP Abuse Reports for 52.103.33.83

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This IP address has been reported a total of 25 times from 14 distinct sources. 52.103.33.83 was first reported on August 1st 2025, and the most recent report was 2 days ago. In the last 60 days, the top reporter locations were: Switzerland with 6 reports; United Kingdom of Great Britain and Northern Ireland with 1 report; Netherlands with 1 report. The most common categories in these recent reports were: Email Spam 9 times; Phishing 1 time.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇭 Origon	2026-10-06 10:59:48 (2 days ago)	NOQUEUE - IP: 52.103.33.83 - Oct 6 12:59:48 plesk postfix/smtpd[1384787]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.33.83 - Oct 6 12:59:48 plesk postfix/smtpd[1384787]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-10-01 13:08:16 (1 week ago)	NOQUEUE - IP: 52.103.33.83 - Oct 1 15:08:16 plesk postfix/smtpd[2309155]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.33.83 - Oct 1 15:08:16 plesk postfix/smtpd[2309155]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-09-28 07:52:03 (1 week ago)	NOQUEUE - IP: 52.103.33.83 - Sep 28 09:52:03 plesk postfix/smtpd[770078]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.33.83 - Sep 28 09:52:03 plesk postfix/smtpd[770078]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-09-25 07:18:03 (1 week ago)	NOQUEUE - IP: 52.103.33.83 - Sep 25 09:18:02 plesk postfix/smtpd[631876]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.33.83 - Sep 25 09:18:02 plesk postfix/smtpd[631876]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-09-21 13:28:44 (2 weeks ago)	NOQUEUE - IP: 52.103.33.83 - Sep 21 15:28:44 plesk postfix/smtpd[2865280]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.33.83 - Sep 21 15:28:44 plesk postfix/smtpd[2865280]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-09-14 05:33:42 (3 weeks ago)	NOQUEUE - IP: 52.103.33.83 - Sep 14 07:33:41 plesk postfix/smtpd[168875]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.33.83 - Sep 14 07:33:41 plesk postfix/smtpd[168875]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 554 5.7.1 Service unavailable; Client host [52.103.33.83] blocked using all.s5h.net; See http://s5h.net/rbl; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇬🇧 openstrike.co.uk	2026-09-07 10:23:48 (1 month ago)	From: Karolyn Abram <[email protected]> Subject: Proposal	Email Spam
Anonymous	2026-08-18 07:37:00 (1 month ago)	E-mail spam at 2026-08-18 07:10 from [email protected] with score 17 E-mail spam at 202 ... show more E-mail spam at 2026-08-18 07:10 from [email protected] with score 17 E-mail spam at 2026-08-18 07:37 from [email protected] with score 17 show less	Email Spam
🇹🇷 SeczarSecureOps	2026-08-13 05:51:54 (1 month ago)	Seczar SecureOps — FortiMail virus: 1 virus-laden message(s) — sender(s): [email protected]	Phishing Email Spam
Anonymous	2026-04-30 18:56:49 (5 months ago)		Email Spam
🇨🇭 Origon	2026-04-20 16:52:41 (5 months ago)	NOQUEUE - IP: 52.103.33.83 - Apr 20 18:52:41 plesk postfix/smtpd[2913430]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.33.83 - Apr 20 18:52:41 plesk postfix/smtpd[2913430]: NOQUEUE: reject: RCPT from mail-westeuropeazolkn19013083.outbound.protection.outlook.com[52.103.33.83]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<AM0PR02CU008.outbound.protection.outlook.com> show less	Email Spam
🇩🇪 Carl-T.	2026-02-13 09:11:00 (7 months ago)	SPAM	Email Spam
Anonymous	2026-02-10 08:42:00 (7 months ago)	E-mail spam at 2026-02-10 08:42 from [email protected] with score 13	Email Spam
🇨🇦 mfb	2026-01-30 12:29:00 (8 months ago)	From: Becky Newman <[email protected]>; Received: from AM0PR02CU008.outbound.protection.o ... show more From: Becky Newman <[email protected]>; Received: from AM0PR02CU008.outbound.protection.outlook.com (mail-westeuropeazolkn19013083.outbound.protection.outlook.com [52.103.33.83]); Fri, 30 Jan 2026 01:29:33 -0500 (EST) show less	Email Spam
🇺🇸 Smee	2025-12-20 17:17:29 (9 months ago)	SPAM Captured via Honeypot from 52.103.33.83 (Country: NL, Continent: EU), HELO: AM0PR02CU008.outbou ... show more SPAM Captured via Honeypot from 52.103.33.83 (Country: NL, Continent: EU), HELO: AM0PR02CU008.outbound.protection.outlook.com show less	Email Spam

Showing 1 to 15 of 25 reports

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