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159.183.121.41

Recent Activity

Abuse confidence score ?

36% Elevated

28 reports

9 reporters · latest 2 days ago

ISP	Twilio SendGrid
Usage Type	Data Center/Web Hosting/Transit
ASN	AS11377
Hostname(s)	o18.ptr7864.openai.com
Domain Name	twilio.com
Country	🇺🇸 United States of America
City	Los Angeles, California

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IP Abuse Reports for 159.183.121.41

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This IP address has been reported a total of 28 times from 9 distinct sources. 159.183.121.41 was first reported on December 26th 2025, and the most recent report was 2 days ago. In the last 60 days, the top reporter locations were: United States of America with 9 reports; Switzerland with 6 reports; Netherlands with 4 reports. The only category in these recent reports was: Email Spam 22 times.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇭 Origon	2026-10-05 08:12:16 (2 days ago)	NOQUEUE - IP: 159.183.121.41 - Oct 5 10:12:16 plesk postfix/smtpd[3717758]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 159.183.121.41 - Oct 5 10:12:16 plesk postfix/smtpd[3717758]: NOQUEUE: reject: RCPT from o18.ptr7864.openai.com[159.183.121.41]: 554 5.7.1 Service unavailable; Client host [159.183.121.41] blocked using all.s5h.net; See http://s5h.net/rbl; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o18.ptr7864.openai.com> show less	Email Spam
Anonymous	2026-10-02 15:02:00 (5 days ago)	E-mail spam at 2026-10-02 15:02 from @em6623.email.openai.com with score 9	Email Spam
🇨🇭 Origon	2026-09-30 15:59:29 (1 week ago)	NOQUEUE - IP: 159.183.121.41 - Sep 30 17:59:29 plesk postfix/smtpd[762210]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 159.183.121.41 - Sep 30 17:59:29 plesk postfix/smtpd[762210]: NOQUEUE: reject: RCPT from o18.ptr7864.openai.com[159.183.121.41]: 554 5.7.1 Service unavailable; Client host [159.183.121.41] blocked using all.s5h.net; See http://s5h.net/rbl; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o18.ptr7864.openai.com> show less	Email Spam
Anonymous	2026-09-27 13:50:00 (1 week ago)	E-mail spam at 2026-09-27 13:50 from @em6623.email.openai.com with score 12	Email Spam
🇫🇮 MostHosted	2026-09-26 04:44:33 (1 week ago)	Spam Sender	Email Spam
🇺🇸 xmission.com	2026-09-25 17:51:53 (1 week ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...8t ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...8tvtwC1bjQ show less	Email Spam
🇺🇸 xmission.com	2026-09-24 21:57:01 (1 week ago)	Sourced 2 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...iV ... show more Sourced 2 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...iVOQupGvMw show less	Email Spam
Anonymous	2026-09-22 08:34:00 (2 weeks ago)	E-mail spam at 2026-09-22 08:34 from @em6623.email.openai.com with score 11	Email Spam
🇨🇭 Origon	2026-09-21 16:04:32 (2 weeks ago)	NOQUEUE - IP: 159.183.121.41 - Sep 21 18:04:32 plesk postfix/smtpd[2934056]: NOQUEUE: reject: RCPT ... show more NOQUEUE - IP: 159.183.121.41 - Sep 21 18:04:32 plesk postfix/smtpd[2934056]: NOQUEUE: reject: RCPT from o18.ptr7864.openai.com[159.183.121.41]: 554 5.7.1 Service unavailable; Client host [159.183.121.41] blocked using all.s5h.net; See http://s5h.net/rbl; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o18.ptr7864.openai.com> show less	Email Spam
🇷🇴 SpamStopper	2026-09-20 16:44:13 (2 weeks ago)	Fail2Ban - POSTFIX DNSBL listed sender	Email Spam
🇺🇸 xmission.com	2026-09-19 17:36:08 (2 weeks ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...Mm ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 26.2. Latest msgid suffix: ...Mmk40TYEpA show less	Email Spam
🇺🇸 xmission.com	2026-09-18 17:57:45 (2 weeks ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 25.9. Latest msgid suffix: ...Vv ... show more Sourced 1 spam messages over 3x XMissions threshold. Highest score: 25.9. Latest msgid suffix: ...VvK8184cTw show less	Email Spam
🇨🇭 Origon	2026-09-13 13:35:55 (3 weeks ago)	NOQUEUE - IP: 159.183.121.41 - Sep 13 15:35:55 plesk postfix/smtpd[3347977]: NOQUEUE: reject: RCPT ... show more NOQUEUE - IP: 159.183.121.41 - Sep 13 15:35:55 plesk postfix/smtpd[3347977]: NOQUEUE: reject: RCPT from o18.ptr7864.openai.com[159.183.121.41]: 554 5.7.1 Service unavailable; Client host [159.183.121.41] blocked using all.s5h.net; See http://s5h.net/rbl; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o18.ptr7864.openai.com> show less	Email Spam
Anonymous	2026-09-12 13:23:00 (3 weeks ago)	E-mail spam at 2026-09-12 13:23 from @em6623.email.openai.com with score 10	Email Spam
🇨🇭 Origon	2026-09-11 12:38:26 (3 weeks ago)	NOQUEUE - IP: 159.183.121.41 - Sep 11 14:38:25 plesk postfix/smtpd[303376]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 159.183.121.41 - Sep 11 14:38:25 plesk postfix/smtpd[303376]: NOQUEUE: reject: RCPT from o18.ptr7864.openai.com[159.183.121.41]: 554 5.7.1 Service unavailable; Client host [159.183.121.41] blocked using all.s5h.net; See http://s5h.net/rbl; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o18.ptr7864.openai.com> show less	Email Spam

Showing 1 to 15 of 28 reports

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