This IP address has been reported a total of
112
times from
65 distinct
sources.
91.92.240.53 was first reported on
, and the most recent report was
.
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.
Reporter
IoA Timestamp (UTC)
Comment
Categories
Anonymous
(smtpauth) Failed SMTP AUTH login from 91.92.240.53 (DE/Germany/-): 5 in the last 3600 secs; Ports: ...
show more(smtpauth) Failed SMTP AUTH login from 91.92.240.53 (DE/Germany/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-07-15 11:57:00 login authenticator failed for H=(91-92-240-53.domain) [91.92.240.53]: 535 Incorrect authentication data (set_id=info)
2026-07-15 12:05:25 login authenticator failed for H=(91-92-240-53.domain) [91.92.240.53]: 535 Incorrect authentication data (set_id=postmaster)
2026-07-15 12:11:09 login authenticator failed for H=(91-92-240-53.domain) [91.92.240.53]: 535 Incorrect authentication data (set_id=admin)
2026-07-15 12:16:23 login authenticator failed for H=(91-92-240-53.domain) [91.92.240.53]: 535 Incorrect authentication data (set_id=test)
2026-07-15 12:21:31 login authenticator failed for H=(91-92-240-53.domain) [91.92.240.53]: 535 Incorrect authentication data (set_id=user)
show less
Mail abuse evidence: repeated SMTP or IMAP authentication failures or invalid-user probes; banned by ...
show moreMail abuse evidence: repeated SMTP or IMAP authentication failures or invalid-user probes; banned by Fail2Ban.
show less
Brute-Force
Email Spam
Anonymous
Kept connecting and disconnecting without issuing any commands
Jul 14 02:01:32 [redacted] postfix/smtps/smtpd[61822]: lost connection after CONNECT from unknown[91 ...
show moreJul 14 02:01:32 [redacted] postfix/smtps/smtpd[61822]: lost connection after CONNECT from unknown[91.92.240.53]
...
show less
Email Spam
Brute-Force
Showing 1 to
15
of 112 reports
Think this IP has been falsely reported? You may request to have the associated
reports reviewed and removed.
Request Takedown ๐ฉ