This IP address has been reported a total of
26
times from
12 distinct
sources.
52.103.20.90 was first reported on
, and the most recent report was
.
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
Spam email received in Outlook.com Junk Email folder.
Likely originating IP: 52.103.20.90
Origin sou ...
show moreSpam email received in Outlook.com Junk Email folder.
Likely originating IP: 52.103.20.90
Origin source header: Authentication-Results
Origin evidence: sender IP is 52.103.20.90
ReceivedDateTime: 08/31/2026 09:03:20
InternetMessageId: <IA0PR10MB757794836BDFC932D84600A9F3A92@IA0PR10MB7577.namprd10.prod.outlook.com>
Selection reason: Selected explicit public sender IP from Authentication-Results
Known-good relay/IP/CIDR filtering was enabled.
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From: Peter Mcclure <[email protected]>; Received: from CH4PR04CU002.outbound.protection. ...
show moreFrom: Peter Mcclure <[email protected]>; Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazolkn19013090.outbound.protection.outlook.com [52.103.20.90]); Mon, 11 May 2026 14:22:34 -0400 (EDT)
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Evidene at https://www.nk.ca/blog/index.php?/archives/17476-Chinese-spam-from-Microsoft-Outlook-Part ...
show moreEvidene at https://www.nk.ca/blog/index.php?/archives/17476-Chinese-spam-from-Microsoft-Outlook-Part-2.html in 2 parts
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Email spam / scam (From: Francisco Pinto <[email protected]> / Subject: Crude Oil Contract. / ... T ...
show moreEmail spam / scam (From: Francisco Pinto <[email protected]> / Subject: Crude Oil Contract. / ... This is a confidential business offer ... reply to this email strictly at: [email protected] ...)
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ICS Labs identified malicious URL in email communication from IP 52.103.20.90, Subject: Undeliverabl ...
show moreICS Labs identified malicious URL in email communication from IP 52.103.20.90, Subject: Undeliverable: Ordem de Serviço
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Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ...
show moreSpoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 3.
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Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ...
show moreSpoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 4.
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Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ...
show moreSpoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 1.
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Spoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. B ...
show moreSpoofing attempts and mass spam have been detected. Blocked by ASSP anti-spam. Reason: DenyStrict. Block attempts: 1.
show less