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121.135.123.212

Neutral Activity

Abuse confidence score ?

0% Low Risk

27 reports

12 reporters · latest 3 years ago

ISP	Korea Telecom
Usage Type	Fixed Line ISP
ASN	AS4766
Domain Name	kt.com
Country	🇰🇷 Korea (the Republic of)
City	Seongnam-si, Gyeonggi-do

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

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No reports in the last 60 days

121.135.123.212 has been reported 27 times. The most recent report is from 3 years 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 121.135.123.212

This IP address has been reported a total of 27 times from 12 distinct sources. 121.135.123.212 was first reported on November 17th 2021, and the most recent report was 3 years ago.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇲🇽 ovela-intecmexico	2023-03-06 20:00:00 (3 years ago)	Zimbra login attack	Brute-Force
🇰🇬 dos5n	2023-03-02 00:12:20 (3 years ago)	2023-03-02T06:10:59.024438mail.megaline.kg postfix/smtpd[16838]: NOQUEUE: reject: RCPT from unknown[ ... show more 2023-03-02T06:10:59.024438mail.megaline.kg postfix/smtpd[16838]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 550 5.1.1 <[email protected]>: Recipient address rejected: megaline.kg; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> 2023-03-02T06:11:34.809735mail.megaline.kg postfix/smtpd[16244]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 550 5.1.1 <[email protected]>: Recipient address rejected: megaline.kg; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> 2023-03-02T06:11:57.894268mail.megaline.kg postfix/smtpd[16841]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 550 5.1.1 <[email protected]>: Recipient address rejected: megaline.kg; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> 2023-03-02T06:12:18.728876mail.megaline.kg postfix/smtpd[16841]: NOQUEUE: reject: RCPT from unknown[121.135.1 ... show less	Brute-Force
🇸🇬 Sean64	2023-03-01 18:04:38 (3 years ago)	Mar 2 02:04:37 sean postfix/smtpd[2350889]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 55 ... show more Mar 2 02:04:37 sean postfix/smtpd[2350889]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 Service unavailable; Client host [121.135.123.212] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/query/ip/121.135.123.212; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> ... show less	Email Spam Brute-Force
🇸🇬 Sean64	2023-03-01 03:56:09 (3 years ago)	Mar 1 11:55:34 sean postfix/smtpd[2242238]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 55 ... show more Mar 1 11:55:34 sean postfix/smtpd[2242238]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 <[email protected]>: Sender address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> Mar 1 11:55:51 sean postfix/smtpd[2243157]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 <[email protected]>: Sender address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> Mar 1 11:56:08 sean postfix/smtpd[2244498]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 <[email protected]>: Sender address rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> ... show less	Email Spam Brute-Force
🇸🇬 Sean64	2023-02-28 18:59:35 (3 years ago)	Mar 1 02:59:35 sean postfix/smtpd[2069929]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 55 ... show more Mar 1 02:59:35 sean postfix/smtpd[2069929]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 Service unavailable; Client host [121.135.123.212] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/query/ip/121.135.123.212; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> ... show less	Email Spam Brute-Force
🇸🇬 Sean64	2023-02-28 10:11:44 (3 years ago)	Feb 28 18:11:43 sean postfix/smtpd[1867911]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 55 ... show more Feb 28 18:11:43 sean postfix/smtpd[1867911]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 Service unavailable; Client host [121.135.123.212] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/121.135.123.212 / https://www.spamhaus.org/sbl/query/SBLCSS; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> ... show less	Email Spam Brute-Force
🇬🇧 Bytemark	2023-01-31 12:13:05 (3 years ago)	Jan 31 12:13:04 dlcentre3 postfix/smtpd[29746]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: ... show more Jan 31 12:13:04 dlcentre3 postfix/smtpd[29746]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 Service unavailable; Client host [121.135.123.212] blocked using cbl.abuseat.org; https://www.spamhaus.org/query/ip/121.135.123.212; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> show less	Email Spam Spoofing Brute-Force Exploited Host
🇺🇸 vestibtech	2023-01-28 00:23:54 (3 years ago)	Jan 27 17:23:53 Host-KLAX-C postfix/in_clean/cleanup[308790]: 0C7891BF601: reject: header Subject: D ... show more Jan 27 17:23:53 Host-KLAX-C postfix/in_clean/cleanup[308790]: 0C7891BF601: reject: header Subject: Don't forget to pay the tax within 2 days! from unknown[121.135.123.212]; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]>: 5.7.1 Message identified as SPAM - Rule #507 ... show less	Email Spam
Anonymous	2022-12-29 05:15:42 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force
Anonymous	2022-12-28 05:16:42 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force
Anonymous	2022-12-27 05:16:00 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force
🇸🇬 Sean64	2022-12-26 10:08:34 (3 years ago)	Dec 26 23:08:33 sean postfix/smtpd[3775741]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 55 ... show more Dec 26 23:08:33 sean postfix/smtpd[3775741]: NOQUEUE: reject: RCPT from unknown[121.135.123.212]: 554 5.7.1 Service unavailable; Client host [121.135.123.212] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[121.135.123.212]> ... show less	Email Spam Brute-Force
Anonymous	2022-12-26 05:16:11 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force
Anonymous	2022-12-25 05:16:31 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force
Anonymous	2022-12-24 13:15:42 (3 years ago)	Unauthorized login attempts via SMTP.	Email Spam Brute-Force

Showing 1 to 15 of 27 reports

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