This IP address has been reported a total of
15
times from
14 distinct
sources.
123.121.103.42 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
France
with 2
reports;
Netherlands
with 2
reports;
Paraguay
with 2
reports.
The most common categories in these recent reports were:
Brute-Force
12
times;
Email Spam
5
times;
Hacking
3
times;
Exploited Host
1
time;
Port Scan
1
time.
Old Reports
The most recent abuse report for this IP address is from
. It is possible that this IP is no
longer involved in abusive activities.
Oct 7 21:23:45 mail postfix/smtpd[56131]: warning: unknown[123.121.103.42]: SASL PLAIN authenticati ...
show moreOct 7 21:23:45 mail postfix/smtpd[56131]: warning: unknown[123.121.103.42]: SASL PLAIN authentication failed: authentication failure
show less
Oct 7 16:57:32 mail postfix/smtpd[16778]: warning: unknown[123.121.103.42]: SASL PLAIN authenticati ...
show moreOct 7 16:57:32 mail postfix/smtpd[16778]: warning: unknown[123.121.103.42]: SASL PLAIN authentication failed: authentication failure
show less
2026-10-05T03:25:33.946958+02:00 mail postfix/smtpd[862095]: lost connection after STARTTLS from unk ...
show more2026-10-05T03:25:33.946958+02:00 mail postfix/smtpd[862095]: lost connection after STARTTLS from unknown[123.121.103.42]
2026-10-05T03:25:37.102376+02:00 mail postfix/smtpd[862104]: lost connection after STARTTLS from unknown[123.121.103.42]
2026-10-05T03:25:37.567216+02:00 mail postfix/smtpd[862092]: lost connection after STARTTLS from unknown[123.121.103.42]
...
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(postfix-unknown) Failed postfix unknown login with username [redacted] from 123.121.103.42 (CN/Chin ...
show more(postfix-unknown) Failed postfix unknown login with username [redacted] from 123.121.103.42 (CN/China/-)
show less
29 Sep 2026 02:18:55UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) includin ...
show more29 Sep 2026 02:18:55UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) including ip address 123.121.103.42
show less
Brute-Force
Showing 1 to
15
of 15 reports
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