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52.128.42.56

Recent Activity

Abuse Confidence Score

3% Caution

18 reports

3 reporters · latest 5 days ago

ISP: ActiveCampaign, Inc.
Usage Type: Data Center/Web Hosting/Transit
ASN: AS14618
Hostname(s): d17c.emsend2.com
Domain Name: activecampaign.com
Country: 🇺🇸 United States of America
City: Reston, Virginia

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

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Abuse Reports

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Total reports

18 from 3 distinct reporters

First reported

June 2nd 2023

Most recent report

5 days 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	2026-11-05 05:00:08 UTC · (5 days ago)	NOQUEUE - IP: 52.128.42.56 - Nov 5 06:00:08 plesk postfix/smtpd[3322134]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 i ... show more NOQUEUE - IP: 52.128.42.56 - Nov 5 06:00:08 plesk postfix/smtpd[3322134]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 27 impacts are seen from AMAZON-AES, US/AS14618 there. See: https://[site]/rblcheck.php?ipr=52.128.42.56; from=<[email protected]> to=<[customer]> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-10-30 06:05:10 UTC · (1 week ago)	NOQUEUE - IP: 52.128.42.56 - Oct 30 07:05:10 plesk postfix/smtpd[1840986]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 ... show more NOQUEUE - IP: 52.128.42.56 - Oct 30 07:05:10 plesk postfix/smtpd[1840986]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 27 impacts are seen from AMAZON-AES, US/AS14618 there. See: https://[site]/rblcheck.php?ipr=52.128.42.56; from=<[email protected]> to=<[customer]> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-10-27 00:00:16 UTC · (2 weeks ago)	NOQUEUE - IP: 52.128.42.56 - Oct 27 01:00:12 plesk postfix/smtpd[4178954]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.c ... show more NOQUEUE - IP: 52.128.42.56 - Oct 27 01:00:12 plesk postfix/smtpd[4178954]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.com (d17c.emsend2.com [52.128.42.56]) Wed, 24 Sep 2025 19:14:52 +0000 (GMT) Subject: =?UTF-8?Q?=F0=9F=93=AC_Can_Direct_Mail_Still_Deliver_New?= =?UTF-8?Q?_Leads_for_Realtors=3F_Let=E2=80=99s_Find_Out!?=; from=<REDACTED@REDACTED> to=<[customer]> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-10-07 00:00:16 UTC · (1 month ago)	NOQUEUE - IP: 52.128.42.56 - Oct 7 02:00:09 plesk postfix/smtpd[2259179]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.co ... show more NOQUEUE - IP: 52.128.42.56 - Oct 7 02:00:09 plesk postfix/smtpd[2259179]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.com (d17c.emsend2.com [52.128.42.56]) Wed, 24 Sep 2025 19:14:52 +0000 (GMT) Subject: =?UTF-8?Q?=F0=9F=93=AC_Can_Direct_Mail_Still_Deliver_New?= =?UTF-8?Q?_Leads_for_Realtors=3F_Let=E2=80=99s_Find_Out!?=; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-09-28 15:31:36 UTC · (1 month ago)	NOQUEUE - IP: 52.128.42.56 - Sep 28 17:31:35 plesk postfix/smtpd[1274499]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.c ... show more NOQUEUE - IP: 52.128.42.56 - Sep 28 17:31:35 plesk postfix/smtpd[1274499]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.com (d17c.emsend2.com [52.128.42.56]) Wed, 24 Sep 2025 19:14:52 +0000 (GMT) Subject: =?UTF-8?Q?=F0=9F=93=AC_Can_Direct_Mail_Still_Deliver_New?= =?UTF-8?Q?_Leads_for_Realtors=3F_Let=E2=80=99s_Find_Out!?=; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-09-08 08:00:08 UTC · (2 months ago)	NOQUEUE - IP: 52.128.42.56 - Sep 8 10:00:07 plesk postfix/smtpd[3178601]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.co ... show more NOQUEUE - IP: 52.128.42.56 - Sep 8 10:00:07 plesk postfix/smtpd[3178601]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using bl.0spam.org; Received: from d17c.emsend2.com (d17c.emsend2.com [52.128.42.56]) Wed, 24 Sep 2025 19:14:52 +0000 (GMT) Subject: =?UTF-8?Q?=F0=9F=93=AC_Can_Direct_Mail_Still_Deliver_New?= =?UTF-8?Q?_Leads_for_Realtors=3F_Let=E2=80=99s_Find_Out!?=; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-08-11 05:03:56 UTC · (2 months ago)	NOQUEUE - IP: 52.128.42.56 - Aug 11 07:03:56 plesk postfix/smtpd[3785713]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 ... show more NOQUEUE - IP: 52.128.42.56 - Aug 11 07:03:56 plesk postfix/smtpd[3785713]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 17 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-08-05 05:03:48 UTC · (3 months ago)	NOQUEUE - IP: 52.128.42.56 - Aug 5 07:03:48 plesk postfix/smtpd[3918308]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 i ... show more NOQUEUE - IP: 52.128.42.56 - Aug 5 07:03:48 plesk postfix/smtpd[3918308]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 44 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-08-01 05:34:04 UTC · (3 months ago)	NOQUEUE - IP: 52.128.42.56 - Aug 1 07:34:04 plesk postfix/smtpd[2570437]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 i ... show more NOQUEUE - IP: 52.128.42.56 - Aug 1 07:34:04 plesk postfix/smtpd[2570437]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 26 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-07-20 05:18:44 UTC · (3 months ago)	NOQUEUE - IP: 52.128.42.56 - Jul 20 07:18:44 plesk postfix/smtpd[1656785]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 ... show more NOQUEUE - IP: 52.128.42.56 - Jul 20 07:18:44 plesk postfix/smtpd[1656785]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 14 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-05-18 05:01:19 UTC · (5 months ago)	NOQUEUE - IP: 52.128.42.56 - May 18 07:01:18 plesk postfix/smtpd[1207660]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 ... show more NOQUEUE - IP: 52.128.42.56 - May 18 07:01:18 plesk postfix/smtpd[1207660]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 16 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-01-12 08:00:12 UTC · (9 months ago)	NOQUEUE - IP: 52.128.42.56 - Jan 12 09:00:10 plesk postfix/smtpd[1847134]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 ... show more NOQUEUE - IP: 52.128.42.56 - Jan 12 09:00:10 plesk postfix/smtpd[1847134]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 25 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-01-07 15:13:01 UTC · (10 months ago)	NOQUEUE - IP: 52.128.42.56 - Jan 7 16:13:00 plesk postfix/smtpd[2610899]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 i ... show more NOQUEUE - IP: 52.128.42.56 - Jan 7 16:13:00 plesk postfix/smtpd[2610899]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 14 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇨🇭 Origon	2026-01-01 15:03:42 UTC · (10 months ago)	NOQUEUE - IP: 52.128.42.56 - Jan 1 16:03:41 plesk postfix/smtpd[30168]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is ... show more NOQUEUE - IP: 52.128.42.56 - Jan 1 16:03:41 plesk postfix/smtpd[30168]: NOQUEUE: reject: RCPT from d17c.emsend2.com[52.128.42.56]: 554 5.7.1 Service unavailable; Client host [52.128.42.56] blocked using dnsbl-2.uceprotect.net; Net 52.128.42.0/24 is UCEPROTECT-Level2 listed because 19 impacts are seen from AMAZON-AES, US/AS14618 there. See: http://www.uceprotect.net/rblcheck.php?ipr=52.128.42.56; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<d17c.emsend2.com> show less	Email Spam
🇺🇸 xmission.com	2025-07-29 18:59:01 UTC · (1 year ago)	Sourced 1 spam messages over 3x XMissions Threshold. Highest score: 27.7. Last seen: 2025-07-29T17:15:18Z UTC.	Email Spam

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