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170.203.20.39

Recent Activity

Abuse confidence score ?

28% Elevated

88 reports

10 reporters · latest 6 hours ago

ISP	Klaviyo, Inc
Usage Type	Data Center/Web Hosting/Transit
ASN	AS14618
Hostname(s)	kl-203-20-39.kmta.shared.klaviyomail.com
Domain Name	klaviyo.com
Country	🇺🇸 United States of America
City	Boston, Massachusetts

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IP Abuse Reports for 170.203.20.39

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This IP address has been reported a total of 88 times from 10 distinct sources. 170.203.20.39 was first reported on July 8th 2025, and the most recent report was 6 hours ago. In the last 60 days, the top reporter locations were: Switzerland with 7 reports; Netherlands with 2 reports; United States of America with 2 reports. The only category in these recent reports was: Email Spam 12 times.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇯🇵 ki3	2026-10-20 06:42:18 (6 hours ago)	170.203.20.39 sends a lot of spam Emails.	Email Spam
Anonymous	2026-10-18 04:00:00 (2 days ago)	E-mail spam at 2026-10-18 04:00 from @k3.email.partywinkel.com with score 10	Email Spam
🇨🇭 Origon	2026-10-16 16:03:58 (3 days ago)	NOQUEUE - IP: 170.203.20.39 - Oct 16 18:03:58 plesk postfix/smtpd[3564147]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 170.203.20.39 - Oct 16 18:03:58 plesk postfix/smtpd[3564147]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_27312920636-kl_1015rtmyhm-h-91e305df76=2@k3.k7.www.ketolabs.de> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-10-06 12:08:44 (2 weeks ago)	NOQUEUE - IP: 170.203.20.39 - Oct 6 14:08:44 plesk postfix/smtpd[1452240]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 170.203.20.39 - Oct 6 14:08:44 plesk postfix/smtpd[1452240]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_26377945493-kl_101101m3vspx6wdhq6my-h-39d1e22d6b=2@k3.send.lilienthal.berlin> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-10-01 05:30:15 (2 weeks ago)	NOQUEUE - IP: 170.203.20.39 - Oct 1 07:30:15 plesk postfix/smtpd[1784207]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 170.203.20.39 - Oct 1 07:30:15 plesk postfix/smtpd[1784207]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_27991671035-kl_101101m36mcje727hxhw-h-973977fcab=2@send.schuler.ch> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇺🇸 xmission.com	2026-09-27 21:46:31 (3 weeks ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 25.0. Latest msgid suffix: ...1D ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 25.0. Latest msgid suffix: ...1D5Y9E0G2N show less	Email Spam
🇨🇭 Origon	2026-09-24 12:05:35 (3 weeks ago)	NOQUEUE - IP: 170.203.20.39 - Sep 24 14:05:34 plesk postfix/smtpd[3520822]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 170.203.20.39 - Sep 24 14:05:34 plesk postfix/smtpd[3520822]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_26377945493-kl_101101m34vj3nz052e53-h-9a5ec0e24a=2@k3.send.lilienthal.berlin> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-09-15 08:15:22 (1 month ago)	NOQUEUE - IP: 170.203.20.39 - Sep 15 10:15:22 plesk postfix/smtpd[2053379]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 170.203.20.39 - Sep 15 10:15:22 plesk postfix/smtpd[2053379]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_27991671035-kl_101101m22nphx07x403a-h-b1ef6987f7=2@send.schuler.ch> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-09-12 08:01:49 (1 month ago)	NOQUEUE - IP: 170.203.20.39 - Sep 12 10:01:49 plesk postfix/smtpd[1608876]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 170.203.20.39 - Sep 12 10:01:49 plesk postfix/smtpd[1608876]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_26377945493-kl_101101m1enjgq1hrdsj3-h-29740658ba=2@k3.send.lilienthal.berlin> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-09-08 15:31:33 (1 month ago)	NOQUEUE - IP: 170.203.20.39 - Sep 8 17:31:33 plesk postfix/smtpd[3748200]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 170.203.20.39 - Sep 8 17:31:33 plesk postfix/smtpd[3748200]: NOQUEUE: reject: RCPT from kl-203-20-39.kmta.shared.klaviyomail.com[170.203.20.39]: 554 5.7.1 Service unavailable; Client host [170.203.20.39] blocked using bl.0spam.org; Received: from kl-203-20-39.kmta.shared.klaviyomail.com (kl-203-20-39.kmta.shared.klaviyomail.com [170.203.20.39]) Thu, 28 May 2026 14:30:13 +0000 Subject: =?UTF-8?q?Manufacturing_Today_=E2=80=93_May_2026_issue_inside?=; from=<bounce-kl_27991671035-kl_101101m0skgby6y99pvk-h-9f34dffafd=2@send.schuler.ch> to=<REDACTED@REDACTED> proto=ESMTP helo=<kl-203-20-39.kmta.shared.klaviyomail.com> show less	Email Spam
Anonymous	2026-08-26 14:30:00 (1 month ago)	E-mail spam at 2026-08-26 14:30 from @k3.email.partywinkel.com with score 12 E-mail spam at 2026-08 ... show more E-mail spam at 2026-08-26 14:30 from @k3.email.partywinkel.com with score 12 E-mail spam at 2026-08-26 14:30 from @k3.email.partywinkel.com with score 12 show less	Email Spam
🇺🇸 xmission.com	2026-08-24 13:02:21 (1 month ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.1. Latest msgid suffix: ...B1 ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.1. Latest msgid suffix: ...B11PHCEPK6 show less	Email Spam
🇺🇸 DiodeDave	2026-08-17 16:59:16 (2 months ago)	Attempted access after blacklisting	Email Spam
🇺🇸 DiodeDave	2026-07-20 16:02:44 (2 months ago)	Attempted access after blacklisting	Email Spam
Anonymous	2026-07-17 07:01:00 (3 months ago)	E-mail spam at 2026-07-17 07:01 from @k3.send.automatten.nl with score 9	Email Spam

Showing 1 to 15 of 88 reports

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