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AbuseIPDB » 178.16.55.105

178.16.55.105 was found in our database!

This IP was reported 395 times. Confidence of Abuse is 100%: ?

100%

ISP	OMEGATECH
Usage Type	Data Center/Web Hosting/Transit
ASN	AS202412
Domain Name	omegatech.sc
Country	🇳🇱 Netherlands
City	Rotterdam, South Holland

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

Report 178.16.55.105

Whois 178.16.55.105

IP Abuse Reports for 178.16.55.105:

This IP address has been reported a total of 395 times from 246 distinct sources. 178.16.55.105 was first reported on November 17th 2025, and the most recent report was 2 weeks ago.

Old Reports: The most recent abuse report for this IP address is from 2 weeks ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇬🇧 AdrianT	2026-05-29 06:27:26 (2 weeks ago)	SMTP port scanning	Port Scan
🇮🇳 evicky2002	2026-05-28 07:33:20 (2 weeks ago)	Confirmed malicious by STILWaters CTI platform (score=100, sources=1)	Hacking Brute-Force SSH
🇸🇬 joehorn.tw	2026-05-25 23:11:11 (2 weeks ago)	2026-05-26T07:11:06.745152+08:00 Nebula postfix/smtpd[189781]: lost connection after CONNECT from un ... show more 2026-05-26T07:11:06.745152+08:00 Nebula postfix/smtpd[189781]: lost connection after CONNECT from unknown[178.16.55.105] 2026-05-26T07:11:09.893604+08:00 Nebula postfix/smtpd[189781]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.25 Client host rejected: cannot find your hostname, [178.16.55.105]; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> 2026-05-26T07:11:11.074326+08:00 Nebula postfix/smtpd[189781]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.25 Client host rejected: cannot find your hostname, [178.16.55.105]; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mail.example.com> ... show less	Email Spam
🇩🇪 ValtonTahiri	2026-05-25 22:44:23 (2 weeks ago)	UFW blocked a suspicious connection attempt to a closed or denied port. This activity is commonly as ... show more UFW blocked a suspicious connection attempt to a closed or denied port. This activity is commonly associated with port scanning, service discovery, or automated internet probing. Technical: source_ip=178.16.55.105; proto=TCP; source_port=64404; target_port=25; flags=SYN show less	Port Scan
🇵🇱 genokrad	2026-05-25 14:51:28 (2 weeks ago)	Unauthorized connection attempt on TCP/25 (SMTP)	Port Scan
🇩🇪 paradigma-software.de	2026-05-25 14:09:02 (2 weeks ago)	2026-05-25T16:09:00.734543+02:00 s15260644 postfix/smtpd[1200791]: NOQUEUE: reject: RCPT from unknow ... show more 2026-05-25T16:09:00.734543+02:00 s15260644 postfix/smtpd[1200791]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> 2026-05-25T16:09:01.227685+02:00 s15260644 postfix/smtpd[1200791]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mail.example.com> 2026-05-25T16:09:02.093096+02:00 s15260644 postfix/smtpd[1200791]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 454 4.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> show less	Brute-Force Hacking
Anonymous	2026-05-25 13:58:00 (2 weeks ago)	attempts to hack passwords	Brute-Force
🇩🇪 laotuo	2026-05-25 12:31:40 (2 weeks ago)	May 25 14:31:37 h2930838 postfix/smtps/smtpd[21055]: NOQUEUE: reject: RCPT from unknown[178.16.55.10 ... show more May 25 14:31:37 h2930838 postfix/smtps/smtpd[21055]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <[email protected]>: Recipient address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> May 25 14:31:38 h2930838 postfix/smtps/smtpd[21055]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <[email protected]>: Recipient address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mail.example.com> May 25 14:31:39 h2930838 postfix/smtps/smtpd[21055]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <[email protected]>: Recipient address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> show less	Brute-Force
🇨🇭 GAS	2026-05-25 12:19:30 (2 weeks ago)	Postfix Attack. 2026-05-25T14:19:29.582077+02:00 mail postfix/submissions/smtpd[324833]: NOQUEUE: re ... show more Postfix Attack. 2026-05-25T14:19:29.582077+02:00 mail postfix/submissions/smtpd[324833]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <unknown[178.16.55.105]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> 2026-05-25T14:19:30.342120+02:00 mail postfix/submissions/smtpd[324833]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <unknown[178.16.55.105]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mail.example.com> ... show less	Email Spam Brute-Force
🇷🇴 INTEQ	2026-05-25 12:07:05 (2 weeks ago)	SPAM from 178.16.55.105	Email Spam
🇫🇷 phoenix1jl96	2026-05-25 07:59:11 (2 weeks ago)	May 25 09:58:59 box postfix/smtpd[3072535]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5 ... show more May 25 09:58:59 box postfix/smtpd[3072535]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> May 25 09:59:00 box postfix/smtpd[3072535]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mail.example.com> ... show less	DNS Compromise DNS Poisoning DDoS Attack Ping of Death Web Spam Email Spam Blog Spam Port Scan Hacking Brute-Force Bad Web Bot SSH Web App Attack
🇫🇷 Provost-info	2026-05-25 07:20:14 (2 weeks ago)	mail server - multiple authentication attempt with unknown username or bad password	Brute-Force Spoofing
🇨🇴 ingentar	2026-05-25 06:08:49 (2 weeks ago)	May 25 01:08:37 mail postfix/submission/smtpd[378293]: NOQUEUE: reject: RCPT from unknown[178.16.55. ... show more May 25 01:08:37 mail postfix/submission/smtpd[378293]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.1 <mail.example.com>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> May 25 01:08:40 mail postfix/submission/smtpd[378293]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.1 <mail.example.com>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> May 25 01:08:43 mail postfix/submission/smtpd[378293]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.1 <mail.example.com>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.example.com> May 25 01:08:46 mail postfix/submission/smtpd[378293]: NOQUEUE: reject: RCPT from unknown[178.16.55.105]: 450 4.7.1 <mail.example.com>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> prot ... show less	Email Spam Brute-Force
🇩🇪 IP Analyzer	2026-05-25 06:00:03 (2 weeks ago)	Unauthorized connection attempt from IP address 178.16.55.105 on Port 25(SMTP)	Port Scan
🇫🇷 Kraften	2026-05-25 05:31:56 (2 weeks ago)	Postfix DDOS ...	DDoS Attack Brute-Force

Showing 1 to 15 of 395 reports

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