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IP Abuse Reports for 5.172.16.42:
This IP address has been reported a total of
22
times from
16 distinct
sources.
5.172.16.42 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
Germany
with 6
reports;
Italy
with 6
reports;
Netherlands
with 3
reports.
The most common categories in these recent reports were:
Brute-Force
19
times;
Email Spam
3
times;
Port Scan
2
times;
Exploited Host
2
times;
Hacking
2
times;
Other
1
time.
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.
Email account brute force: 1 attempts were recorded from 5.172.16.42
2026-08-30T11:10:07+02:00 warni ...
show moreEmail account brute force: 1 attempts were recorded from 5.172.16.42
2026-08-30T11:10:07+02:00 warning: unknown[5.172.16.42]: SASL LOGIN authentication failed: authentication failure, [email protected]show less
Email account brute force: 1 attempts were recorded from 5.172.16.42
2026-08-30T04:49:50+02:00 warni ...
show moreEmail account brute force: 1 attempts were recorded from 5.172.16.42
2026-08-30T04:49:50+02:00 warning: unknown[5.172.16.42]: SASL LOGIN authentication failed: authentication failure, [email protected]show less
(postfix-unknown) Failed postfix unknown login with username [redacted] from 5.172.16.42 (RU/Russia/ ...
show more(postfix-unknown) Failed postfix unknown login with username [redacted] from 5.172.16.42 (RU/Russia/-)
show less
Aug 29 00:52:35 mail postfix/smtps/smtpd[26696]: warning: unknown[5.172.16.42]: SASL LOGIN authentic ...
show moreAug 29 00:52:35 mail postfix/smtps/smtpd[26696]: warning: unknown[5.172.16.42]: SASL LOGIN authentication failed: authentication failure
show less
