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77.90.156.99

Neutral Activity

Abuse confidence score ?

0% Low Risk

101 reports

29 reporters · latest 3 months ago

ISP	K&K Kommunikationssysteme GmbH
Usage Type	Data Center/Web Hosting/Transit
ASN	Unknown
Domain Name	netcup.de
Country	🇩🇪 Germany
City	Augsburg, Bavaria

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

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No reports in the last 60 days

77.90.156.99 has been reported 101 times. The most recent report is from 3 months ago.

The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.

IP Abuse Reports for 77.90.156.99

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This IP address has been reported a total of 101 times from 29 distinct sources. 77.90.156.99 was first reported on February 6th 2026, and the most recent report was 3 months ago.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇦🇹 joe-abuse	2026-06-20 01:36:24 (3 months ago)	Automated report from fail2ban on mail.fitzgerald.eu. Jail: postfix-unknown-recipient. First seen: 2 ... show more Automated report from fail2ban on mail.fitzgerald.eu. Jail: postfix-unknown-recipient. First seen: 2026-06-18 02:00:17. Events: 18. Reported by ipdb-security/fitzgerald.eu show less	Email Spam
🇹🇷 agah.balta	2026-05-26 04:55:11 (4 months ago)	PMG Spam Score: 21.0. Hits: RCVD_IN_HOSTKARMA_BL(1.5), RCVD_IN_SBL(10), RCVD_IN_SBL_CSS(3.558), URIB ... show more PMG Spam Score: 21.0. Hits: RCVD_IN_HOSTKARMA_BL(1.5), RCVD_IN_SBL(10), RCVD_IN_SBL_CSS(3.558), URIBL_BLACK(1.7), URIBL_DBL_MALWARE(2.5), URIBL_DBL_PHISH(2.5) show less	Email Spam Hacking
🇷🇸 Smel	2026-05-25 04:05:36 (4 months ago)	Mail/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -	Email Spam Hacking Brute-Force
🇨🇭 Origon	2026-05-22 16:39:18 (4 months ago)	NOQUEUE - IP: 77.90.156.99 - May 22 18:39:18 plesk postfix/smtpd[599593]: NOQUEUE: reject: RCPT fro ... show more NOQUEUE - IP: 77.90.156.99 - May 22 18:39:18 plesk postfix/smtpd[599593]: NOQUEUE: reject: RCPT from world.pkamigos.com[77.90.156.99]: 554 5.7.1 Service unavailable; Client host [77.90.156.99] blocked using dnsbl-1.uceprotect.net; IP 77.90.156.99 is UCEPROTECT-Level 1 listed. See http://www.uceprotect.net/rblcheck.php?ipr=77.90.156.99; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<world.pkamigos.com> show less	Email Spam
Anonymous	2026-05-21 08:00:22 (4 months ago)	Data: 2026-04-30 Adres E-mail Nadawcy: [email protected] Adres IP Serwera Nadawcy: 77.90.156.99 ... show more Data: 2026-04-30 Adres E-mail Nadawcy: [email protected] Adres IP Serwera Nadawcy: 77.90.156.99 Tytuł E-maila: Rejestracja dostawców Lidl Polska show less	Web Spam
🇵🇱 strefapi_com	2026-05-19 22:36:56 (4 months ago)	Brute-force or trying open relay ...	Brute-Force Web App Attack
🇦🇹 joe-abuse	2026-05-19 11:45:53 (4 months ago)	2026-05-19T13:45:52.823052+02:00 ucs1 postfix/smtpd[55145]: NOQUEUE: reject: RCPT from world.pkamigo ... show more 2026-05-19T13:45:52.823052+02:00 ucs1 postfix/smtpd[55145]: NOQUEUE: reject: RCPT from world.pkamigos.com[77.90.156.99]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<world.pkamigos.com> 2026-05-19T13:45:53.002843+02:00 ucs1 postfix/smtpd[55145]: NOQUEUE: reject: RCPT from world.pkamigos.com[77.90.156.99]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<world.pkamigos.com> ... show less	Email Spam
Anonymous	2026-05-14 16:10:18 (4 months ago)	2026-05-14T18:09:39.599707+02:00 postfix/postscreen[3420889]: NOQUEUE: reject: RCPT from [77.90.156 ... show more 2026-05-14T18:09:39.599707+02:00 postfix/postscreen[3420889]: NOQUEUE: reject: RCPT from [77.90.156.99]:32787: 550 5.7.1 Service unavailable; client [77.90.156.99] blocked using bl.mailspike.net; proto=ESMTP, helo=<world.pkamigos.com> 2026-05-14T18:10:11.267099+02:00 postfix/postscreen[3420889]: NOQUEUE: reject: RCPT from [77.90.156.99]:60578: 550 5.7.1 Service unavailable; client [77.90.156.99] blocked using bl.mailspike.net; proto=ESMTP, helo=<world.pkamigos.com> 2026-05-14T18:10:16.304368+02:00 postfix/postscreen[3420889]: NOQUEUE: reject: RCPT from [77.90.156.99]:53235: 550 5.7.1 Service unavailable; client [77.90.156.99] blocked using bl.mailspike.net; proto=ESMTP, helo=<world.pkamigos.com> show less	Email Spam
Anonymous	2026-05-14 09:15:27 (4 months ago)	SPAM EMAIL 77.90.156.99 (RBL_TRIGGER)	Email Spam
Anonymous	2026-05-12 08:19:01 (4 months ago)	SIEM ALERT AUTO REPORT	Email Spam
🇨🇭 Origon	2026-05-11 09:43:43 (4 months ago)	NOQUEUE - IP: 77.90.156.99 - May 11 11:43:42 plesk postfix/smtpd[2374576]: NOQUEUE: reject: RCPT fr ... show more NOQUEUE - IP: 77.90.156.99 - May 11 11:43:42 plesk postfix/smtpd[2374576]: NOQUEUE: reject: RCPT from world.pkamigos.com[77.90.156.99]: 554 5.7.1 Service unavailable; Client host [77.90.156.99] blocked using dnsbl-2.uceprotect.net; Net 77.90.156.0/24 is UCEPROTECT-Level2 listed because 491 impacts are seen from AUWIRELESS-01, US/AS397081 there. See: http://www.uceprotect.net/rblcheck.php?ipr=77.90.156.99; from=<[email protected]> to=<REDACTED@REDACTED> proto=ESMTP helo=<world.pkamigos.com> show less	Email Spam
🇩🇪 Finn	2026-05-07 16:13:15 (4 months ago)	SMTP brute-force - Dropped connection to port 25 via smtp (matched optimized drop.)	Brute-Force
🇵🇱 strefapi_com	2026-05-07 14:10:25 (4 months ago)	Brute-force or trying open relay ...	Brute-Force Web App Attack
🇩🇪 Finn	2026-05-07 07:08:32 (4 months ago)	SMTP brute-force - Dropped connection to port 25 via smtp (matched optimized drop.)	Brute-Force
🇩🇪 Finn	2026-05-06 06:57:24 (5 months ago)	SMTP brute-force - Dropped connection to port 25 via smtp	Brute-Force

Showing 1 to 15 of 101 reports

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