Suspicious activity detected from IP 158.173.20.67 based on mailserver logs.
Sample logs:
2026-02-10 ...
show moreSuspicious activity detected from IP 158.173.20.67 based on mailserver logs.
Sample logs:
2026-02-10 12:03:49,713 INFO [qtp2102534528-24380] [name=**@*.id;ip=172.16.0.182;oip=158.173.20.67;oport=59257;oproto=smtp;port=45878;soapId=2e788a08;] soap - AuthRequest elapsed=1
2026-02-10 12:04:01,365 INFO [qtp2102534528-24380] [name=**@*.id;ip=172.16.0.182;oip=158.173.20.67;oport=43665;oproto=smtp;port=39608;soapId=2e788a09;] SoapEngine - handler exception: authentication failed for [**], LDAP error: - unable to ldap authenticate: invalid credentials
2026-02-10 12:04:01,365 INFO [qtp2102534528-24380] [name=**@*.id;ip=172.16.0.182;oip=158.173.20.67;oport=43665;oproto=smtp;port=39608;soapId=2e788a09;] soap - AuthRequest elapsed=2
2026-02-10 12:04:01,882 INFO [qtp2102534528-24277] [name=**@*.id;ip=172.16.0.182;oip=158.173.20.67;oport=43665;oproto=smtp;port=39614;soapId=2e788a0a;] SoapEngine - handler exception: authentication failed for [**], LDAP error: - unable to ldap authenticate: inva
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(smtpauth) Failed SMTP AUTH login from 158.173.20.67 (NL/The Netherlands/-): 1 in the last 3600 secs ...
show more(smtpauth) Failed SMTP AUTH login from 158.173.20.67 (NL/The Netherlands/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2026-02-10T13:59:21.078764+11:00 mail postfix/submission/smtpd[1355779]: warning: unknown[158.173.20.67]: SASL PLAIN authentication failed: (reason unavailable), [email protected]show less