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AbuseIPDB » 52.103.35.75

52.103.35.75 was found in our database!

This IP was reported 25 times. Confidence of Abuse is 17%: ?

17%

ISP	Microsoft Corporation
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Hostname(s)	mail-swedencentralazolkn19013075.outbound.protection.outlook.com
Domain Name	microsoft.com
Country	🇸🇪 Sweden
City	Gavle, Gavleborg

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

Report 52.103.35.75

Whois 52.103.35.75

IP Abuse Reports for 52.103.35.75:

This IP address has been reported a total of 25 times from 12 distinct sources. 52.103.35.75 was first reported on July 29th 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
🇨🇭 Origon	2026-08-10 19:57:32 (1 week ago)	NOQUEUE - IP: 52.103.35.75 - Aug 10 21:57:31 plesk postfix/smtpd[3126493]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.35.75 - Aug 10 21:57:31 plesk postfix/smtpd[3126493]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 554 5.7.1 Service unavailable; Client host [52.103.35.75] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.35.75; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam
🇹🇷 SeczarSecureOps	2026-08-10 08:09:19 (1 week ago)	Seczar SecureOps — FortiMail virus: 1 virus-laden message(s) — sender(s): unknown	Phishing Email Spam
🇬🇧 Bytemark	2026-07-31 17:21:31 (3 weeks ago)	2026-07-31T18:21:30.679799+01:00 dlcentre3 postfix/smtpd[4113987]: NOQUEUE: reject: RCPT from mail-s ... show more 2026-07-31T18:21:30.679799+01:00 dlcentre3 postfix/smtpd[4113987]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 554 5.7.1 Service unavailable; Client host [52.103.35.75] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.35.75; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam Spoofing Brute-Force Exploited Host
🇨🇭 Origon	2026-07-20 08:59:50 (1 month ago)	NOQUEUE - IP: 52.103.35.75 - Jul 20 10:59:50 plesk postfix/smtpd[1911328]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.35.75 - Jul 20 10:59:50 plesk postfix/smtpd[1911328]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 554 5.7.1 Service unavailable; Client host [52.103.35.75] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.35.75; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-07-12 09:37:02 (1 month ago)	NOQUEUE - IP: 52.103.35.75 - Jul 12 11:37:02 plesk postfix/smtpd[4174109]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.35.75 - Jul 12 11:37:02 plesk postfix/smtpd[4174109]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 554 5.7.1 Service unavailable; Client host [52.103.35.75] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.35.75; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam
🇨🇭 Origon	2026-06-23 07:54:30 (2 months ago)	NOQUEUE - IP: 52.103.35.75 - Jun 23 09:54:30 plesk postfix/smtpd[2436954]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.35.75 - Jun 23 09:54:30 plesk postfix/smtpd[2436954]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 554 5.7.1 Service unavailable; Client host [52.103.35.75] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?52.103.35.75; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam
🇹🇷 SeczarSecureOps	2026-06-23 06:07:28 (2 months ago)	Auto-blocked by Seczar SecureOps — Antivirus Hit (1 events in 60min) at 2026-06-23 06:07	Web App Attack
🇺🇸 xmission.com	2026-05-25 01:07:50 (2 months ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 30.7. Latest msgid suffix: ...-0 ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 30.7. Latest msgid suffix: ...-005U9A-7y show less	Email Spam
Anonymous	2026-05-04 16:30:44 (3 months ago)	Bloqueado por fail2ban (smtp-connect-check)	Email Spam Brute-Force
Anonymous	2026-04-23 04:53:36 (4 months ago)	Bloqueado por fail2ban (smtp-connect-check)	Email Spam Brute-Force
Anonymous	2026-04-09 04:53:09 (4 months ago)	Bloqueado por fail2ban (smtp-connect-check)	Email Spam Brute-Force
🇨🇭 Origon	2026-03-30 21:09:30 (4 months ago)	NOQUEUE - IP: 52.103.35.75 - Mar 30 23:09:30 plesk postfix/smtpd[3633305]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 52.103.35.75 - Mar 30 23:09:30 plesk postfix/smtpd[3633305]: NOQUEUE: reject: RCPT from mail-swedencentralazolkn19013075.outbound.protection.outlook.com[52.103.35.75]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<GVXPR05CU001.outbound.protection.outlook.com> show less	Email Spam
Anonymous	2026-03-18 15:30:28 (5 months ago)	Bloqueado por fail2ban (smtp-connect-check)	Email Spam Brute-Force
Anonymous	2026-03-18 11:13:00 (5 months ago)	E-mail spam at 2026-03-18 11:13 from [email protected] with score 9	Email Spam
Anonymous	2026-03-10 05:52:59 (5 months ago)	Bloqueado por fail2ban (smtp-connect-check)	Email Spam Brute-Force

Showing 1 to 15 of 25 reports

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