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AbuseIPDB » 52.103.14.40

52.103.14.40 was found in our database!

This IP was reported 23 times. Confidence of Abuse is 18%: ?

18%

ISP	Microsoft Corporation
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Hostname(s)	mail-southcentralusazolkn19013040.outbound.protection.outlook.com
Domain Name	microsoft.com
Country	🇺🇸 United States of America
City	San Antonio, Texas

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

Report 52.103.14.40

Whois 52.103.14.40

IP Abuse Reports for 52.103.14.40:

This IP address has been reported a total of 23 times from 10 distinct sources. 52.103.14.40 was first reported on October 1st 2025, and the most recent report was 1 week ago.

Old Reports: The most recent abuse report for this IP address is from 1 week ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
Anonymous	2026-05-28 09:23:00 (1 week ago)	E-mail spam at 2026-05-28 09:23 from [email protected] with score 10	Email Spam
🇺🇸 Waterside	2026-05-27 00:00:00 (1 week ago)	DMARC impersonation signal for domains=bla***.net; src_ip=52.103.14.40; reasons=disposition=reject ... show more DMARC impersonation signal for domains=bla*.net; src_ip=52.103.14.40; reasons=disposition=reject; evidence_count=2; auth_examples=bla***.net:dkim=fail spf=fail disp=reject reporter=yahoo date=2026-05-27 show less	Spoofing Email Spam
🇸🇪 triplecode	2026-05-21 11:26:45 (2 weeks ago)	Reported from hMailServer	Email Spam
🇨🇭 Origon	2026-04-01 07:08:34 (2 months ago)	NOQUEUE - IP: 52.103.14.40 - Apr 1 09:08:34 plesk postfix/smtpd[2321957]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.14.40 - Apr 1 09:08:34 plesk postfix/smtpd[2321957]: NOQUEUE: reject: RCPT from mail-southcentralusazolkn19013040.outbound.protection.outlook.com[52.103.14.40]: 554 5.7.1 Service unavailable; Client host [52.103.14.40] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.14.40; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<SA9PR02CU001.outbound.protection.outlook.com> show less	Email Spam
🇬🇧 Bytemark	2026-03-11 12:48:39 (2 months ago)	Mar 11 12:47:23 dlcentre3 postfix/smtpd[6817]: NOQUEUE: reject: RCPT from mail-southcentralusazolkn1 ... show more Mar 11 12:47:23 dlcentre3 postfix/smtpd[6817]: NOQUEUE: reject: RCPT from mail-southcentralusazolkn19013040.outbound.protection.outlook.com[52.103.14.40]: 554 5.7.1 Service unavailable; Client host [52.103.14.40] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.14.40; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<SA9PR02CU001.outbound.protection.outlook.com> show less	Email Spam Spoofing Brute-Force Exploited Host
🇳🇱 wlt-blocker	2026-03-11 00:12:02 (2 months ago)	Spam with a high level and/or caught by honeypot detected	Email Spam
🇨🇭 Origon	2026-03-04 00:12:10 (3 months ago)	NOQUEUE - IP: 52.103.14.40 - Mar 4 01:12:10 plesk postfix/smtpd[1855788]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.14.40 - Mar 4 01:12:10 plesk postfix/smtpd[1855788]: NOQUEUE: reject: RCPT from mail-southcentralusazolkn19013040.outbound.protection.outlook.com[52.103.14.40]: 554 5.7.1 Service unavailable; Client host [52.103.14.40] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.14.40; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<SA9PR02CU001.outbound.protection.outlook.com> show less	Email Spam
🇨🇦 rootnk	2026-02-05 23:25:00 (4 months ago)	Evidence at https://www.nk.ca/blog/index.php?/archives/15751-WebSEOApp-spam-from-Microsoft-Outlook-P ... show more Evidence at https://www.nk.ca/blog/index.php?/archives/15751-WebSEOApp-spam-from-Microsoft-Outlook-Part-4.html in 4 parts show less	Email Spam
🇨🇭 Origon	2026-01-05 17:24:34 (5 months ago)	NOQUEUE - IP: 52.103.14.40 - Jan 5 18:24:34 plesk postfix/smtpd[3289132]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 52.103.14.40 - Jan 5 18:24:34 plesk postfix/smtpd[3289132]: NOQUEUE: reject: RCPT from mail-southcentralusazolkn19013040.outbound.protection.outlook.com[52.103.14.40]: 450 4.1.8 <IMCEAEX-_o=First+20Organization_ou=Exchange+20Administrative+20Group+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=0006400000A84AED@namprd07.prod.outlook.com>: Sender address rejected: Domain not found; from=<IMCEAEX-_o=First+20Organization_ou=Exchange+20Administrative+20Group+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=0006400000A84AED@namprd07.prod.outlook.com> to=<REDACTED@REDACTED> proto=ESMTP helo=<SA9PR02CU001.outbound.protection.outlook.com> show less	Email Spam
🇺🇸 xmission.com	2025-11-20 14:54:47 (6 months ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 28.0. Latest msgid suffix: ...-0 ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 28.0. Latest msgid suffix: ...-009C5f-R0 show less	Email Spam
🇷🇸 Smel	2025-11-14 16:19:35 (6 months ago)	Mail/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -	Email Spam Hacking Brute-Force
🇦🇷 lzambrana	2025-11-11 11:11:39 (6 months ago)	Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ... show more Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 1. show less	FTP Brute-Force Brute-Force
🇦🇷 lzambrana	2025-10-30 11:45:09 (7 months ago)	Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ... show more Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 2. show less	FTP Brute-Force Brute-Force
🇦🇷 lzambrana	2025-10-30 10:48:47 (7 months ago)	Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ... show more Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 3. show less	FTP Brute-Force Brute-Force
🇦🇷 lzambrana	2025-10-27 10:34:18 (7 months ago)	Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ... show more Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 2. show less	FTP Brute-Force Brute-Force

Showing 1 to 15 of 23 reports

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