This IP address has been reported a total of
19
times from
16 distinct
sources.
172.104.166.29 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
United States of America
with 2
reports;
Brazil
with 1
report;
Finland
with 1
report.
The most common categories in these recent reports were:
Brute-Force
7
times;
Web App Attack
1
time;
Email Spam
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.
Suspicious activity detected from IP 172.104.166.29 based on mailserver logs.
Sample logs:
2026-10-0 ...
show moreSuspicious activity detected from IP 172.104.166.29 based on mailserver logs.
Sample logs:
2026-10-07 09:27:47,255 INFO [ImapServer-29133] [ip=172.16.0.182;oip=172.104.166.29;via=172.16.0.182(nginx/1.24.0);ua=Zimbra/24.9.7_ZEXTRAS_202410;cid=31795;] imap - LOGIN elapsed=1 (NIO)
2026-10-07 09:27:57,968 INFO [ImapServer-29133] [ip=172.16.0.182;cid=31797;oip=172.104.166.29;via=172.16.0.182(nginx/1.24.0);ua=Zimbra/24.9.7_ZEXTRAS_202410;] imap - ID elapsed=0 (NIO)
2026-10-07 09:27:57,970 INFO [ImapServer-29133] [ip=172.16.0.182;oip=172.104.166.29;via=172.16.0.182(nginx/1.24.0);ua=Zimbra/24.9.7_ZEXTRAS_202410;cid=31797;] imap - authentication failed for [**] (LDAP error: - unable to ldap authenticate: invalid credentials)
2026-10-07 09:27:57,970 INFO [ImapServer-29133] [ip=172.16.0.182;oip=172.104.166.29;via=172.16.0.182(nginx/1.24.0);ua=Zimbra/24.9.7_ZEXTRAS_202410;cid=31797;] account - Error occurred during authentication: authentication failed for [**]. Reason: LDAP error: - unable
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