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149.72.156.203

Recent Activity

Abuse Confidence Score

4% Caution

108 reports

24 reporters · latest 14 hours ago

ISP: SendGrid, Inc.
Usage Type: Data Center/Web Hosting/Transit
ASN: AS11377
Hostname(s): o1384.shared.klaviyomail.com
Domain Name: twilio.com
Country: 🇺🇸 United States of America
City: Leesburg, Virginia

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

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Abuse Reports

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Total reports

108 from 24 distinct reporters

First reported

May 29th 2021

Most recent report

14 hours ago

Last 60 days

Top reporter locations 🇨🇭 Switzerland 5

Most common categories Email Spam 5

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.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇭 Origon	2026-11-08 18:01:51 UTC · (14 hours ago)	NOQUEUE - IP: 149.72.156.203 - Nov 8 19:01:51 plesk postfix/smtpd[386274]: NOQUEUE: reject_warning: RCPT REDACTEDom o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.ucepr ... show more NOQUEUE - IP: 149.72.156.203 - Nov 8 19:01:51 plesk postfix/smtpd[386274]: NOQUEUE: reject_warning: RCPT REDACTEDom o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Your ISP SENDGRID, US/AS11377 is UCEPROTECT-Level3 listed because of a spamscore of 84.4. See: https://[site]/rblcheck.php?ipr=149.72.156.203; REDACTEDom=<[email protected]> to=<[customer]> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-11-04 05:30:10 UTC · (5 days ago)	NOQUEUE - IP: 149.72.156.203 - Nov 4 06:30:10 plesk postfix/smtpd[1508311]: NOQUEUE: reject_warning: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect ... show more NOQUEUE - IP: 149.72.156.203 - Nov 4 06:30:10 plesk postfix/smtpd[1508311]: NOQUEUE: reject_warning: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Your ISP SENDGRID, US/AS11377 is UCEPROTECT-Level3 listed because of a spamscore of 100.7. See: https://[site]/rblcheck.php?ipr=149.72.156.203; from=<bounces+58042139-b9c9-REDACTED=REDACTED@k1.send.6minutenverlag.de> to=<[customer]> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-11-01 09:02:47 UTC · (1 week ago)	NOQUEUE - IP: 149.72.156.203 - Nov 1 10:02:46 plesk postfix/smtpd[833458]: NOQUEUE: reject_warning: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect. ... show more NOQUEUE - IP: 149.72.156.203 - Nov 1 10:02:46 plesk postfix/smtpd[833458]: NOQUEUE: reject_warning: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Your ISP SENDGRID, US/AS11377 is UCEPROTECT-Level3 listed because of a spamscore of 104.5. See: https://[site]/rblcheck.php?ipr=149.72.156.203; from=<[email protected]> to=<[customer]> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-09-30 08:02:16 UTC · (1 month ago)	NOQUEUE - IP: 149.72.156.203 - Sep 30 10:02:16 plesk postfix/smtpd[241454]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - ... show more NOQUEUE - IP: 149.72.156.203 - Sep 30 10:02:16 plesk postfix/smtpd[241454]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-09-26 20:45:50 UTC · (1 month ago)	NOQUEUE - IP: 149.72.156.203 - Sep 26 22:45:50 plesk postfix/smtpd[2758605]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - ... show more NOQUEUE - IP: 149.72.156.203 - Sep 26 22:45:50 plesk postfix/smtpd[2758605]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-08-30 17:04:18 UTC · (2 months ago)	NOQUEUE - IP: 149.72.156.203 - Aug 30 19:04:18 plesk postfix/smtpd[2701811]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-2.uceprotect.net; N ... show more NOQUEUE - IP: 149.72.156.203 - Aug 30 19:04:18 plesk postfix/smtpd[2701811]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-2.uceprotect.net; Net 149.72.128.0/19 is UCEPROTECT-Level2 listed because 57 impacts are seen from SENDGRID, US/AS11377 there. See: http://www.uceprotect.net/rblcheck.php?ipr=149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-07-08 17:01:05 UTC · (4 months ago)	NOQUEUE - IP: 149.72.156.203 - Jul 8 19:01:05 plesk postfix/smtpd[1606436]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Yo ... show more NOQUEUE - IP: 149.72.156.203 - Jul 8 19:01:05 plesk postfix/smtpd[1606436]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Your ISP SENDGRID, US/AS11377 is UCEPROTECT-Level3 listed because of a spamscore of 96.3. See: http://www.uceprotect.net/rblcheck.php?ipr=149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-07-04 17:12:24 UTC · (4 months ago)	NOQUEUE - IP: 149.72.156.203 - Jul 4 19:12:24 plesk postfix/smtpd[1738265]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Yo ... show more NOQUEUE - IP: 149.72.156.203 - Jul 4 19:12:24 plesk postfix/smtpd[1738265]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using dnsbl-3.uceprotect.net; Your ISP SENDGRID, US/AS11377 is UCEPROTECT-Level3 listed because of a spamscore of 50.4. See: http://www.uceprotect.net/rblcheck.php?ipr=149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇫🇮 MostHosted	2026-06-14 17:46:01 UTC · (4 months ago)	Spam Sender	Email Spam
🇫🇮 MostHosted	2026-06-09 18:01:00 UTC · (4 months ago)	Spam Sender	Email Spam
🇺🇸 xmission.com	2026-06-05 17:20:58 UTC · (5 months ago)	Sourced 1 spam messages over 3x XMissions threshold. Highest score: 28.2. Latest msgid suffix: ...f1dNXqPggw	Email Spam
🇨🇭 Origon	2026-06-05 15:02:20 UTC · (5 months ago)	NOQUEUE - IP: 149.72.156.203 - Jun 5 17:02:20 plesk postfix/smtpd[1942401]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - ... show more NOQUEUE - IP: 149.72.156.203 - Jun 5 17:02:20 plesk postfix/smtpd[1942401]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-06-02 14:15:48 UTC · (5 months ago)	NOQUEUE - IP: 149.72.156.203 - Jun 2 16:15:48 plesk postfix/smtpd[958784]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - s ... show more NOQUEUE - IP: 149.72.156.203 - Jun 2 16:15:48 plesk postfix/smtpd[958784]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-05-29 09:00:22 UTC · (5 months ago)	NOQUEUE - IP: 149.72.156.203 - May 29 11:00:21 plesk postfix/smtpd[695251]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - ... show more NOQUEUE - IP: 149.72.156.203 - May 29 11:00:21 plesk postfix/smtpd[695251]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam
🇨🇭 Origon	2026-05-24 07:00:22 UTC · (5 months ago)	NOQUEUE - IP: 149.72.156.203 - May 24 09:00:21 plesk postfix/smtpd[3322054]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - ... show more NOQUEUE - IP: 149.72.156.203 - May 24 09:00:21 plesk postfix/smtpd[3322054]: NOQUEUE: reject: RCPT from o1384.shared.klaviyomail.com[149.72.156.203]: 554 5.7.1 Service unavailable; Client host [149.72.156.203] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?149.72.156.203; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<o1384.shared.klaviyomail.com> show less	Email Spam

Showing 1 to 15 of 108 reports

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